List of events in rough chronological order



Dear reader,



This thread has been superseded by

Dear reader,This thread has been superseded by a newer thread due to character size restrictions. A copy is left here for archival purposes; however, this copy is significantly out-of-date.

Stone Man Loss

@BitcoinTalk

.00000000

BTC

BTC

.73

BTC

Due to not keeping proper wallet backups, 8999 BTC sent as change were effectively destroyed when the private key controlling them was lost. Because this theft is from 2010, it is not included in severity lists.

Ubitex Scam

.98

BTC

BTC

BTC

[1] The company was run by a minor, but this fact was not initially known.



Around 1000 BTC of the missing investments are said to have been spent, many of which were further scammed, or converted into USD without follow-up.



The Ubitex scam would not have been possible today. Bitcoin users at the time were enjoying their newly-acquired wealth thanks to significant appreciation. Most investors at the time were extremely naïve. Ubitex was the first company to be listed on the now-defunct GLBSE stock exchange, which has been criticised for its illegal operations.The company was run by a minor, but this fact was not initially known.Around 1000of the missing investments are said to have been spent, many of which were further scammed, or converted into USD without follow-up.The Ubitex scam would not have been possible today. Bitcoin users at the time were enjoying their newly-acquired wealth thanks to significant appreciation. Most investors at the time were extremely naïve.

Stefan Thomas Loss

BTC

BTC

BTC

Stefan Thomas, an early adopter (and eventually developer) of Bitcoin, uses this loss to teach other Bitcoiners the importance of backupsmany of them. He had three copies of his wallet, and yet lost all of them.

Allinvain Theft

.01000000

BTC

BTC

BTC

A polarizing theft, its authenticity has undergone much dispute. Some believe that it was set up as a ploy for donations. However, these critics often lack evidence to back up their claims. Indeed, the victim was an early adopter who mined many coins at a low cost, so there is little reason for him to sabotage Bitcoin's image.



Although the hack attracted great attention in its day, said fame has mostly subsided. Even today, however, the hack still affects Bitcoiners. A common debate among Bitcoin users is that of tainting coins, and this hack is often used as an example for why tainting coins is futile. In just a few years, coins stolen in this hack are now present in nearly every user's wallet. This rapid redistribution is often cited as a reason that a tainted coin system would certainly fail.

June 2011 Mt. Gox Incident

BTC

.27

BTC

.27

BTC

BTC

BTC

BTC /USD exchange service, suffered a severe breach as a consequence of an ownership change. The sale conditions involved a share of revenue to be remitted to the seller. To audit this revenue, the seller was permitted an account with administrator access.[4]



The seller's administrator account was hacked by an unknown process. The priveleges were then abused to generate humungous quantities of BTC . None of the BTC , however, was backed by Mt. Gox. The attackers sold the BTC generated, driving Mt. Gox BTC prices down to cents. They then purchased the cheap BTC with their own accounts and withdrew the money. Some additional money was stolen by non-attacking traders capitalizing on the dropping price and withdrawing in time, including toasty, a member of BitcoinTalk.



Mt. Gox resolved the hack by reverting trades to a previous version. Many customers claim they have lost money from this reversion, but Mt. Gox claims it has reimbursed all customers fully for this theft. After the incident, Mt. Gox shut down for several days.[6]



The event's scale was widely disputed; some report a theft of almost 500000 BTC due to related account hacking. However, these reports are sparse and disreputable. Closer inspection puts the losses at closer to 2500 BTC .



Aside from the direct damages of the theft, the hack involved a database leak. Some weaker passwords were used to conduct the relatively more severe Mt. Gox, then the leading/USD exchange service, suffered a severe breach as a consequence of an ownership change. The sale conditions involved a share of revenue to be remitted to the seller. To audit this revenue, the seller was permitted an account with administrator access.The seller's administrator account was hacked by an unknown process. The priveleges were then abused to generate humungous quantities of. None of the, however, was backed by Mt. Gox. The attackers sold thegenerated, driving Mt. Goxprices down to cents. They then purchased the cheapwith their own accounts and withdrew the money. Some additional money was stolen by non-attacking traders capitalizing on the dropping price and withdrawing in time, including toasty, a member of BitcoinTalk.Mt. Gox resolved the hack by reverting trades to a previous version. Many customers claim they have lost money from this reversion, but Mt. Gox claims it has reimbursed all customers fully for this theft. After the incident, Mt. Gox shut down for several days.The event's scale was widely disputed; some report a theft of almost 500000due to related account hacking. However, these reports are sparse and disreputable. Closer inspection puts the losses at closer to 2500Aside from the direct damages of the theft, the hack involved a database leak. Some weaker passwords were used to conduct the relatively more severe Mass MyBitcoin Thefts

Mass MyBitcoin Thefts

NB : Not to be confused with the far more severe MyBitcoin Theft.

.42939378

BTC

BTC

BTC

[8]



MyBitcoin estimates indicate 1% of MyBitcoin users were affected.[8] Users that were not affected would be later stolen from anyways, due to the subsequent Users with weak passwords on MyBitcoin who used the same password on Mt. Gox were in for a surprise after the June 2011 Mt. Gox Incident allowed weakly-salted hashes of all Mt. Gox user passwords to be leaked. These passwords were then hacked on MyBitcoin and a significant amount of money lost.MyBitcoin estimates indicate 1% of MyBitcoin users were affected.Users that were not affected would be later stolen from anyways, due to the subsequent MyBitcoin Theft

MyBitcoin Theft

.58205388

BTC

BTC

BTC

Little information was released about the MyBitcoin theft, however, many argue that Tom Williams ran it as a scam (and was not a theft per se). In terms of both dollars and bitcoins, this was by far the largest theft, however, it is possible it was simply a scam. Although MyBitcoin offered to release its code as a gift to the community, it failed to follow through on that promise. In the months ensuing, some evidence has been uncovered supporting mortgage broker Bruce Wagner; however, any evidence is inconclusive.



The theft resulted in the closure of MyBitcoin, which was once a successful Bitcoin company in Bitcoin's early days.

Bitomat.pl Loss

BTC

BTC

BTC

Bitomat.pl, during a server restart, had its remote Amazon service that housed the wallet wiped. No backups were kept. Mt. Gox later bailed bitomat.pl out, and neither customers nor original owners suffered any loss from the incident.

Mooncoin Theft

BTC

BTC

BTC

Moonco.in's hack has been compared to the MyBitcoin of SolidCoin, back when it remained a powerful cryptocurrency. Over 800000 SC have been removed from circulation, only to have been put back through SolidCoin 2.0. The effects on Bitcoin were also substantial, and the effect on Namecoin was not negligible. In total, this may have been the worst cross-currency hack in cryptocurrency history.

Bitcoin7 Hack

BTC

Based on size of order books at that time, ~15000.

A quarter supposedly not stolen (3 of 4 wallets compromised).

Rounded to 11000 BTC

* Bitcoin7 may have disappeared with more (u.b. 15000 BTC ).

BTC

BTC

Bitcoin7 later shut down because of this hack. The magnitude served as a reminder to the Bitcoin community to stop trusting new exchanges without identification.

October 2011 Mt. Gox Loss

BTC

BTC

.0

BTC

111291fcf8ab84803d42ec59cb4eaceadd661185242a1e8f4b7e49b79ecbe5f3

81f591582b436c5b129f347fe7e681afd6811417973c4a4f83b18e92a9d130fd

ddddf9f04b4c1d4e1185cacf5cf302f3d11dee5d74f71721d741fbb507062e9e

305fbc2ec7f7f2bc5a21d2dfb01a5fc52ab5d064a7278e2ecbab0d2a27b8c392

f0137a6b31947cf7ab367ae23942a263272c41f36252fcd3460ee8b6e94a84c1

633acf266c913523ab5ed9fcc4632bae18d2a7efc1744fd43dd669e5f2869ce5

5bd88ab32b50e4a691dcfd1fff9396f512e003d7275bb5c1b816ab071beca5ba

64c01fedd5cf6d306ca18d85e842f068e19488126c411741e089be8f4052df09

3be0ac3dc1c3b7fa7fbe34f4678037ed733a14e801abe6d3da42bc643a651401

9edab6e7fadf1d6006315ff9394c08a7bf42e19cf61502200a1f73994f8da94b

835d4dcc52e160c23173658de0b747082f1937d1184e8e1838e9394bc62c0392

aebe39a99114f1b46fc5a67289545e54cbfec92d08fc8ffc92dc9df4a15ea05a

aa62bdd690de061a6fbbd88420f7a7aa574ba86da4fe82edc27e2263f8743988

6a86e6a5e8d5f9e9492114dafe5056c5618222f5042408ad867d3c1888855a31

7ad47a19b201ce052f98161de1b1457bacaca2e698f542e196d4c7f8f45899ab

0ca7f7299dc8d87c26c82badf9a303049098af050698c694fbec35c4b08fc3df

3ab5f53978850413a273920bfc86f4278d9c418272accddade736990d60bdd53

03acfae47d1e0b7674f1193237099d1553d3d8a93ecc85c18c4bec37544fe386

15ad0894ab42a46eb04108fb8bd66786566a74356d2103f077710733e0516c3a

2d00ef4895f20904d7d4c0bada17a8e9d47d6c049cd2e5002f8914bfa7f1d27b

6d39eeb2ae7f9d42b0569cf1009de4c9f031450873bf2ec84ce795837482e7a6

07d33c8c74e945c50e45d3eaf4add7553534154503a478cf6d48e1c617b3f9f3

6d5088c138e2fbf4ea7a8c2cb1b57a76c4b0a5fab5f4c188696aad807a5ba6d8

Mt. Gox fully reimbursed customers after this incident.

Bitscalper Scam

Alberto Armandi bitdaytrade @BitcoinTalk bitscalper @BitcoinTalk jjfarren @BitcoinTalk



BTC

BTC

.9

BTC

Bitscalper was founded as an arbitrage engine, and users were invited to deposit money. It was promising extremely high and unrealistic returns. As a result, it was suspected of being a scam from the beginning, fears that were compounded due to a shady and anonymous management. After Bitscalper shut down without returning user funds, BitcoinTalk user MiningBuddy attempted to reform Bitscalper using the remnants of the engine. However, no success was found and the coins could not be returned.

Bitcoin Savings and Trust

SEC

BTC

BTC

BTC

BTC

BTC

BTC

BTC

Andrew Nollan Scam

BTC

BTC

BTC

Linode Hacks



Dear reader,



This thread has been superseded by

Dear reader,This thread has been superseded by a newer thread due to character size restrictions. A copy is left here for archival purposes; however, this copy is significantly out-of-date.

Bitcoinica : 43554 .02005417 BTC [16]

: 43554 Bitcoin.cx : 3094 .45825078 BTC [17]

: 3094 Bitcoin faucet[18]: 4 .98800000 BTC [19]

.46630495

BTC

BTC

BTC

5a09f4ef0e91bc7bc044365cd27236fe4ac3c02088ac21ab51c93c8a11d33d4b

7b45c1742ca9f544cccd92d319ef8a5e19b7dcb8742990724c6a9c2f569ae732

901dbcef30a541b8b55fae8f7ad9917ef0754bda5b643705f3773e590785c4d3

a57132e2cbc580ac262aa3f7bac1e441d6573f9633118bc48009618585a0967e

a82ad85286c68f37a2feda1f5e8a4efa9db1e642b4ef53cb9fd86170169e5e68

ff04763e3e8c93e43799dbbca833e183faad7e2611f20f136f47c2f1049481ae

0268b7285b95444808753969099f7ae43fb4193d442e3e0deebb10e2bb1764d0

34b84108a142ad7b6c36f0f3549a3e83dcdbb60e0ba0df96cd48f852da0b1acb

14350f6f2bda8f4220f5b5e11022ab126a4b178e5c4fca38c6e0deb242c40c5f[18]

[20] The hardest hit was the bitcoin trading platform, Bitcoinica. This resulted in the unauthorized transfer of BTC from the hot wallets, a term used to describe operational withdrawal wallets, of the services affected. A severe bitcoin-denominated theft, the Linode theft also affected Tradehill, but no coins were stolen from them; instead, Tradehill had a short downtime because of the incident. In the aftermath of this theft, all the services migrated to other platforms. To this day, Bitcoin users fear Linode and usually refrain from using its services. In early March 2012, the New Jersey-based web and cloud hosting company Linode was suspected of robbing many popular Bitcoin services. A vulnerability in the customer support system was used to obtain administrator access to the servers. Once the Linode servers were compromised, eight accounts dealing with bitcoins were targeted.The hardest hit was the bitcoin trading platform, Bitcoinica. This resulted in the unauthorized transfer offrom the hot wallets, a term used to describe operational withdrawal wallets, of the services affected. A severe bitcoin-denominated theft, the Linode theft also affected Tradehill, but no coins were stolen from them; instead, Tradehill had a short downtime because of the incident. In the aftermath of this theft, all the services migrated to other platforms. To this day, Bitcoin users fear Linode and usually refrain from using its services.

Betcoin Theft

Event Time Theft Commences

Transaction: #1, #2 2012-04-11T10:55:54 Theft Continues

Transaction: #3 2012-04-11T12:15:49 Theft Culminates

Transaction: #4 2012-04-11T12:43:14

All times are blockchain time, and have possible error of up to 3 hours.

BTC

.50195016

BTC

BTC

BTC

266e4682abdf4932c4c271872ca9ba6bfdbe75941eb9ba4c4d81e4d3c7364e4b

40fc8f6b2f222fb2871a38a245132ed1eada9ff6aec8d46ebe74b29c64fd82a7

bf70ac1d2b702dbe0e14fbefb3a0cb2ff5ee5aa425cfe4249f16d6ede7b3ff14

92968a2331a02a3128460a64ba16fbf8d3a2fc79ebc8882300015d3ca0e4fb17

BTC remains to be refunded to creditors today.[21] Similar to the Mooncoin Theft a year ago, and just as devastating, a gambling website's customers lost a large amount of money. This time, the owner took just as large a hit: all the deposits, plus non-live storage, were stolen. 2900remains to be refunded to creditors today.

Tony Silk Road Scam

BTC

BTC

BTC

Users of Silk Road, an underground drug market using Bitcoin as the default currency, bought significant quantities of illicit drugs from trusted vendor Tony76. Although Silk Road has an escrow system, trusted vendors are allowed to bypass the system and request that the buyers pay first. On April 20, which is a popular day for drug sales in American culture, Tony76 offered drugs at a significant discount. However, none of the products made it to the customers, revealing the sale as an elaborate sham.

May 2012 Bitcoinica Hack

Hacker unknown, minimal coins were returned.

Venture capital group Wendon Group threatened legal action against Bitcoinica Consultancy.

Receivership in New Zealand ongoing.

Bitcoinica: Exactly 18547.66867623 BTC

18547.66867623 Creditors of Bitcoinica: Pending liquidation BitMarket.Eu: About 19980 BTC



BTC

BTC

BTC





On December 21, 2012, it was discovered that BitMarket.eu lost a large portion of customer funds which were stored on Bitcoinica.[25] These customers were reportedly unaware that their funds were stored on Bitcoinica. Return of a portion of these funds is still possible, pending the outcome of liquidation. Zhou Tong, former founder of Bitcoinica, discovered an entry into Bitcoinica's Rackspace server through an excessively privileged compromised email address. This caused the theft of the entire hot wallet, funds stored on-site, as well as the loss of the main database. No backups were kept. Bitcoinica shut down because of this incident. The claims process is still ongoing; however, Bitcoinica is now entering receivership.On December 21, 2012, it was discovered that BitMarket.eu lost a large portion of customer funds which were stored on Bitcoinica.These customers were reportedly unaware that their funds were stored on Bitcoinica. Return of a portion of these funds is still possible, pending the outcome of liquidation.

Bitcoin Syndicate Theft

Bitcoin Syndicate Paul Mumby Shareholders on GLBSE



BTC

BTC

BTC

A hacker infiltrated the Mt. Gox account used by Bitcoin Syndicate, sold off the USD owned, and withdrew all balances.

July 2012 Bitcoinica Theft

Bitcoinica, LLC

Creditors of Bitcoinica (former users of Bitcoinica)

Suspect Accused by Defended by Additional evidence Zhou Tong AurumXChange

Mt. Gox Tihan Seale Selling bitcoins after event Chen Jinghai Zhou Tong

BTC

BTC

BTC

On July 13, 2012, a thief compromised the Bitcoinica Mt. Gox account. The thief made off with around 30% of Bitcoinica's bitcoin assets, which are likely to cost claimants of Bitcoinica debt. Additionally, 40000 USD was also reported to be stolen. The thief is still unknown at this point, but the theft has supposedly been entirely returned. This theft further complicated the [#=may_2012_bitcoinica_hack]May 2012 Bitcoinica Hack[/iurl].

BTC-E Hack

Event Time Commencing 2012-07-31 00:07 (UTC) Action taken 2012-07-31 06:30 (UTC)

BTC-E chat user MrWubbles *, known as:

Bitcoin-related FelicityWubwell @BitcoinTalk SupaDupaJenkins @BitcoinTalk  SupaDupaJenkins @bitcoin-otc Social networking SupaDupaTweetz @Twitter SupaDupaDotBit @YouTube * Person has denied committing theft after initially pretending to do it. Evidence supports the faked theft admission as mere trolling.

 Account used at the time of the theft, no longer active.



*, known as: * Person has denied committing theft after initially pretending to do it. Evidence supports the faked theft admission as mere trolling.  Account used at the time of the theft, no longer active. BTC-E (accusation of inside job): Little evidence has been provided; as BTC-E reimbursed its customers, the only thing it could gain from faking the theft was PRand faking poor security is usually not considered useful PR.



BTC

BTC

BTC

BTC . Not all BTC was withdrawn; official estimates state that the scope was limited to 4500 BTC . Similar to the On July 31, 2012, the BTC-E Liberty Reserve API secret key was broken. This key was shorter than it needed to be at only 16 characters long. The attacker initiated many Liberty Reserve deposits and injected large amounts of USD into the system, which were quickly sold for. Not allwas withdrawn; official estimates state that the scope was limited to 4500. Similar to the June 2011 Mt. Gox Incident , the BTC-E market was disturbed during the duration of the hack. The handling of this hack was widely applauded after BTC-E revealed they would cover the losses and revert to a backup made just before the hack.

Bitfloor Theft

Event Time Theft Commences

Transaction: #1 2012-09-04T03:07:39 Theft Continues

Transaction: #2, #3 2012-09-04T03:12:52 Theft Culminates

Transaction: #4, #5 2012-09-04T03:43:33

All times are blockchain time, and have possible error of up to 3 hours.

.17219307

BTC

BTC

BTC

83f3c30dc4fa25afe57b85651b9bbc372e8789d81b08d6966ea81f524e0a02be

d5d23a05858236c379d2aa30886b97600506933bc46c6f2aab2e05da85e61ad2

358c873892016649ace8e9db4c59f98a6ca8165287ac80e80c52e621f5a26e46

f9d55dc4b8af65e15f856496335a29e2be40f128a7374c75b75529e864579f93

42ea472060118ee5aee801cdedbc4a3403f3708a87340660f766e2669f0afeb0

[27] Unfortunately, Bitfloor's banks shut down the exchange's operation before all coins could be recouped. Although the keys to the hot wallet of Bitfloor was secured, an unencrypted backup was mistakenly stored on some of the servers. After a hacker gained entry, most of not only the hot wallet but also the cold wallet was stolen. To this date, none of the coins have been returned by the hacker to Bitfloor. Although Bitfloor briefly shut down after the incident, it has since restarted and has committed to repaying its creditors.Unfortunately, Bitfloor's banks shut down the exchange's operation before all coins could be recouped.

Cdecker Theft

BTC

BTC

BTC

6f85951bcecbe64999ad192275af087c5be2922ee13937693992c1ddf9ae8ce6

8e6a2d0b8132d3d9edc1fcffe1b3079de59c10c67522e2abc51c1d84b260fdac

A supposedly long-time user of Bitcoin found his personal wallet emptied of a significant amount in late September 2012. Because far more severe personal thefts had occurred in the past, the theft went by without much incident.

2012 50BTC Theft

9dfdb24667657365c469ff20568fcc820f6f028a125d9c22dc521ae44dcf7c5e

bd2ad7b49c22d12cf2f8f12ef601952aed2a96907af4df732156fd90165b5ef5

d0035ad189634e90239cca82eb53f78e08c0179620b2bd24e2cb291478c7d57a

a2b642bafea45bc128d81314ef33542bc807811ba066329eaa1306bd62bec075

.51659074

BTC

BTC

BTC

[29] The 50BTC mining pool suffered a hack of the billing software in late 2012. They were unable to identify the vulnerability. After the incident, 50BTC completely rewrote the billing software.

2012 Trojan

Event Time Theft Commences

Transaction: #1 2012-10-18 22:56:56 Theft Continues

Transaction: #2, #3, #4, #5, #6, #7, #8, #9, #10 September, October and November 2012 Mralbi @BitcoinTalk theft

Transaction: #11 2012-11-16 03:30:13 Theft Culminates

Transaction: #12, #13 2012-11-16 03:30:13

@BitcoinTalk

97.106.160.84

178.177.115.229

Through blockchain: Exactly 3257.00000000 BTC + 0.02450000 BTC tx fees

Through Mt. Gox: Lower Bound 200 BTC

BTC

BTC

BTC

04e378f81eb620f21927639cd4cda00e0473ca958f4d21f2255f37554b5440fa

065e7ff6b1503fc023876ffe930dcd9866531812e40bbda72835f232c2f23910

0723b67631588b6d5a4a406a9ef8d431c0d5282c6f1cb308fef57c7503d83158

0ae924c33555b294a3f0b256da6a02ab996d30be00eaf184d53281009a3a50d6

3f938408deb6d20a74f6256d3ba0217df266450d4c00c40d94df7b840f66db05

9766b624e004ad1a9369b1b461d33f57e7dddabb43942d34ac10e912cd9ce36b

2db76ebd4b5eecf008334d1bdc1f63f764ca3fb9275557a2a82d52ebf52eea9f

c041a74fd565c3eb247ff4b1fb6eb0ab9299c3e7d58e5172c28cbe9540858d5a

82719bedd0730511385faf68d88b9a03e269a40e3fa5f269efe4a9fc3a821f7f

2bc69aa29f56d7051f9cb19bf923c5e2a81879b4f6a3bc849f4166f56d417c2a

8d6602b0e8e4479d79e5dab0c35bdb4f7545513cb426411348ec1502413a8f80

3a66ebef43041f230e799f1efd3a93e41f875c718da683e236632e13a70cf898

0197692748ba894697a0a48fdfdb3e72f3275b079005efad8be062de38b65edf

BTC between September and November of 2012. BitcoinTalk user mralbi was a major victim, losing almost 2600 BTC .[30] The same hacker also stole 200 BTC from Mt. Gox accounts, supposedly with the same trojan which doubled as a keylogger. A trojan horse stole thousands ofbetween September and November of 2012. BitcoinTalk user mralbi was a major victim, losing almost 2600The same hacker also stole 200from Mt. Gox accounts, supposedly with the same trojan which doubled as a keylogger.

Bit LC Theft

BTC

BTC

BTC

This alleged theft was unique in that coins held in the hot wallet were safe, but coins held in a cold wallet compromised. The thief is not expected to have access to the coins regardless, so there was little financial gain from this theft. Erick, allegedly the only one with physical access to Bit LC Inc.'s cold wallet, has failed to communicate and withdraw coins. Bit LC Inc. therefore was required to declare bankruptcy. There is no proof that Erick intentionally stole the coins; indeed, some evidence asserts that he or she may simply have disappeared in some manner.

BTCGuild Incident

BTC

BTC

BTC

BTC

BTC have been returned to the pool. The pool would on the following day lose even more money thanks to a When BTCGuild was upgrading the Bitcoind client to 0.8, the mining pool used its original upgrade plan. However, 0.8 is unique in that it reindexes the blockchain. This prompted a temporary state in which the pool was paying out for difficulty-1 shares, as that was the extent of the blockchain parsed. Sixteen separate thieves subsequently emptied the hot wallet. 47have been returned to the pool. The pool would on the following day lose even more money thanks to a bug causing its recent upgrade to 0.8 to differ from nodes running 0.7 or lower.

2013 Fork

.09645667

BTC

BTC

BTC

A major blockchain fork occurred due to a bug in Bitcoin-Qt clients which had not upgraded to the new 0.8 version. Unfortuantely, those clients formed the majority of Bitcoin users at the time. The resulting fork split mining pools; those that had upgraded lost block revenue. Some mining pools took the hit, whereas others passed the cost on to miners.



The fork also made possible isolated double-spending attack. Only one such attack was conducted, costing OKPay significantly. Luckily, the thief has since returned the money.

Bitcoin Rain

BTC

BTC

BTC

[35] As Bitcoin Rain's funds were stored there, investors in Bitcoin Rain as well as account holders on Mercado Bitcoin lost money. Some money was reportedly paid back, but the vast majority is still outstanding. A suspected long-running con likened to the infamous Bitcoin Savings and Trust , Bitcoin Rain finally defaulted on March 28, 2013. Leandro César claimed there was a security breach on his exchange website Mercado Bitcoin.As Bitcoin Rain's funds were stored there, investors in Bitcoin Rain as well as account holders on Mercado Bitcoin lost money. Some money was reportedly paid back, but the vast majority is still outstanding.

ZigGap

.65967460

BTC

BTC

BTC

BTC , ZigGap saw little business. The founder seems to have also suffered mental illness in the latter stages of business operation.[37] User aethero, who was originally a reputable Bitcoiner, founded ZigGap after two previously succesful ventures, including BitPantry. Purporting to offer easy ways to purchase, ZigGap saw little business. The founder seems to have also suffered mental illness in the latter stages of business operation.

Ozcoin Theft

.94

BTC

.99063322

BTC

BTC

BTC

A hacker managed to infilterate Ozcoin's payout script, such that all money was paid out to the hacker's address. Luckily, a day later Strongcoin seized most of the stolen funds and promptly returned them to Ozcoin.

Just Dice Incident

BTC

BTC

BTC

A player on Just-Dice.com with an especially large balance asked to withdraw 1300 BTC . Because the hot wallet did not contain that much money, Just-Dice.com operator dooglus manually processed the transaction from the cold wallet. However, dooglus forgot to remove the balance in Just-Dice.com's database. The Just-Dice.com user then proceeded to bet the fake balance on the gambling website and subsequently lost it all. Because of the manner Just-Dice.com is structured, the website lost money even though the malicious user did not earn any money from the theft.



To recoup losses, the operator rolled back the gambling losses and corrected the wrong balance. This resulted in losses for all investors of Just-Dice.com; however, the operator explains that nobody actually lost money because the bet should never have happened. In conclusion, it seems that odd decisions on the malicious user's part and probability ensured no actual loss from the incident, even though 1300 BTC was stolen. The amount was simply lost back to Just-Dice.com thanks to luck in the website's favour.

Silk Road Seizure

2013-10-02: First seizure (Silk Road user funds)

2013-10-25: Second seizure (Ross Ulbricht's personal coins)

First seizure: 27618 .69843217 BTC [41]

Second seizure: 144336 .39449470 BTC [42]

.09292687

BTC

BTC

[43] Although it operated under the jurisdiction of the United States, it made little attempt to comply with US law.[44] However, clever use of the Tor technology allowed Silk Road to escape the authorities for years.



Finally, in October 2013, the FBI was able to produce conclusive evidence of Ross Ulbrict's culpability. Ulbricht was found in San Francisco and arrested.[45] In the days ensuing, it seized a large portion of Ulbricht's personal wealth in addition to stored balances by Silk Road users.[46] However, the FBI has yet to successfully seize an estimated remaining 400000 BTC in Ulbricht's personal wallet.[47].



The first seizure came right as Silk Road's domain was seized, and included funds belonging to Silk Road users. The second seizure came several weeks later, seizing coins belonging to Ross Ulbricht himself.



This seizure is notable in that it is the first major legally authorized seizure. At the moment, Ulbricht is awaiting trial in New York.[48] Silk Road was a former underground marketplace that dealt primarily in Bitcoin. Run by Ross Ulbricht, it was once widely known for frequent narcotic sales.Although it operated under the jurisdiction of the United States, it made little attempt to comply with US law.However, clever use of the Tor technology allowed Silk Road to escape the authorities for years.Finally, in October 2013, the FBI was able to produce conclusive evidence of Ross Ulbrict's culpability. Ulbricht was found in San Francisco and arrested.In the days ensuing, it seized a large portion of Ulbricht's personal wealth in addition to stored balances by Silk Road users.However, the FBI has yet to successfully seize an estimated remaining 400000 BTC in Ulbricht's personal wallet.The first seizure came right as Silk Road's domain was seized, and included funds belonging to Silk Road users. The second seizure came several weeks later, seizing coins belonging to Ross Ulbricht himself.This seizure is notable in that it is the first major legally authorized seizure. At the moment, Ulbricht is awaiting trial in New York.

Inputs.io Hack



Dear reader,



This thread has been superseded by

Dear reader,This thread has been superseded by a newer thread due to character size restrictions. A copy is left here for archival purposes; however, this copy is significantly out-of-date.

BTC

[52][53] When the theft was announced in November 2013, TradeFortress began offering partial refunds; however, 4100 BTC was not paid back as that was the shortfall from the supposed hack. Inputs.io, a web wallet service run by BitcoinTalk user TradeFortress, was supposedly hacked in October 2013 and was unable to repay user balances in full. There are many accusations of the hack being an inside job. TradeFortress had a contentious reputation and had supposedly scammed two separate people before this incident.When the theft was announced in November 2013, TradeFortress began offering partial refunds; however, 4100was not paid back as that was the shortfall from the supposed hack.

Thefts without known chronology

Kronos Hack

Alberto Armandi bitdaytrade @BitcoinTalk bitscalper @BitcoinTalk jjfarren @BitcoinTalk



BTC

BTC

BTC

A serial scammer, Alberto Armandi reportedly hacked into a website he himself coded. The vulnerability was in the withdrawal script that Alberto coded, reportedly intentionally as a backdoor. Information about Kronos is highly uncertain, due to a lack of communication. Jonathon Ryan Owens was not responsive to demands for information.

Thefts not included

World Bitcoin Exchange, due to fraudulent activity, stole over 5000 BTC worth at the time in AUD. The total amount stolen was 25779.49 AUD . More information: https://bitcointalk.org/index.php?topic=65867.msg923845#msg923845

worth at the time in AUD. The total amount stolen was . More information: https://bitcointalk.org/index.php?topic=65867.msg923845#msg923845 Tradehill was repeatedly hassled by Dwolla, and eventually dropped support after being scammed off 17000 USD. Later fraudulent transactions ended up costing the exchange even more, and after the March 2012 Linode Hacks they shut down, citing 100000 USD stolen or scammed through fraud.

Minor but notable thefts

First recorded physical theft of bitcoins: https://bitcointalk.org/index.php?topic=52206.0

Coordinated hacking of BitcoinTalk accounts allowed theft of many loaned bitcoins: https://bitcointalk.org/index.php?topic=61500.0

Bitcointalk.org user Goat lost 400 BTC through sending to a wrong address. These bitcoins were later recovered: https://bitcointalk.org/index.php?topic=82600.0

On watch

Pirate default



Dear reader,



This thread has been superseded by

Dear reader,This thread has been superseded by a newer thread due to character size restrictions. A copy is left here for archival purposes; however, this copy is significantly out-of-date. This section is no longer available in this archived copy.

References



Dear reader,



This thread has been superseded by

Dear reader,This thread has been superseded by a newer thread due to character size restrictions. A copy is left here for archival purposes; however, this copy is significantly out-of-date.

Type: LossTime: August 09, 2010, 11:35:00 PM ± 600 sVictim: Stone ManStatus: Coins lost, effectively destroyedAmount:Equivalent in June 2013Transaction of interest: eb5b761c7380ed4c6adf688f9e5ab94953dcabeda47d9eeabd77261902fccccfTime: April 2011 to July 2011Victim: Investors on GLBSE of UbitexStatus: Ubitex founder known, but nothing returnedAmount:(amount invested into Ubitex)Equivalent USD:(wt. avg)Equivalent in June 2013Type: LossTime: June 2011Victim: Stefan ThomasStatus: Coins destroyed (no thief)Amount:Equivalent USD:(wt. avg, rounded to nearest thousand)Equivalent in June 2013Time: June 13, 2011, 05:52:00 PM ± 600 s [satoshi estimated block transmission time]Victim: Bitcointalk.org user allinvainStatus: Thief uncaughtAmount:Equivalent USD:Equivalent in June 2013Chief transaction of interest: 4885ddf124a0f97b5a3775a12de0274d342d12842ebe59520359f976721ac8c3Time: June 19, 2011, 06:00:00 PM ± 1 h (theft), days ensuing (hacks & withdrawals)Victim: Mt. Gox (some claim also customers)Status: Thief uncaughtAmount:Stolen by thief: 2000Additional withdrawn from Mt. Gox: 643(lower bound)Total:Equivalent USD:(trades on Mt. Gox not reliable at the time)Equivalent in June 2013Transactions: none released officiallyTime: 2011-06-20 through 2011-06-21Victim: MyBitcoin users with weak account passwordsAmount:Equivalent in June 2013Transactions: all to 1MAazCWMydsQB5ynYXqSGQDjNQMN3HFmEuTime: Unknown time in July 2011 (claimed it was a process)Victim: MyBitcoin & customersStatus: Thief unknown, planned shutdown suspected (disputed theft)Suspects: Tom Williams, likely pseudonym (founder of MyBitcoin)Amount:Equivalent USD:(wt. avg, definitely >$1M, rounded to nearest $)Equivalent in June 2013Transaction information: noneType: LossTime: 2011-07-26Victim: Bitomat.plStatus: Coins destroyed (no thief)Amount:(likely estimate/lower bound, no tx due to technical reason)Equivalent USD:(rounded to nearest thousand)Equivalent in June 2013Time: 2011-09-11Victim: Mr. Moon, Mooncoin, & CustomersStatus: Unknown (Federal intervention suspected)Amount:(conservative estimate based on SC values)Equivalent USD:(rounded to nearest thousand)Equivalent in June 2013Transactions: numerousTime: 2011-10-05 (UTC)Victim: Bitcoin7 & CustomersStatus: Hacker unknown (officially from Eastern Europe or Russia), scam suspected, some returnedAmount:Equivalent USD:(rounded to nearest ten thousand)Equivalent in June 2013Type: LossTime: 2011-10-28T21:11 (UTC) [blockchain time, off by up to three hours]Victim: Mt. GoxStatus: Coins destroyed (no thief)Amount:Equivalent USD:(wt. avg price)Equivalent in June 2013Transactions:Time: January 2012 to March/April 2012Suspects:Victim: Users of BitscalperStatus: MiningBuddy (bitcointalk.org user) attempted to reorganize bitscalper, but failed. No coins have been returned at all.Amount:(official estimate)Equivalent USD:(wt. avg, rounded to nearest thousand)Equivalent in June 2013Time: 20112012Victim: Creditors of First Pirate Savings and Trust, later Bitcoin Savings and TrustStatus:Amount:263024Equivalent USD:Equivalent in June 2013Time: February 2012Victim: Investors of Shades Minoco, creditors of bitcointalk.org user shakaru, investors of BitArbStatus: Andrew Nollan (a.k.a. shakaru) (thief) known but disappeared, repaid some (not included in amount)Amount:, possibly moreEquivalent USD:(wt. avg price, rounded to nearest $)Equivalent in June 2013Time: Late 2012-03-01, Early 2012-03-02Victim: Bitcoinica, Bitcoin.cz mining pool (Marek Palatinus), Bitcoin Faucet, possible othersStatus: Thief unknown, not caught. Linode employee suspected.Amount:Total:Equivalent USD:(rounded to nearest $)Equivalent in June 2013Transactions of interest:Time:Victims: Betco.in, creditorsStatus: Hacker not known. Some of creditors' deposits were repaid, around 2900outstanding.Amount:Equivalent USD:(rounded to nearest $)Equivalent in June 2013Transactions of interest:Time: 2012-04-20Victim: Buyers on Silk RoadStatus: Scammer known to be Silk Road user Tony76Amount:Equivalent USD:(wt. avg price, rounded to nearest thousand)Equivalent in June 2013Time: May 12, 2012, 11:19:00 AM [blockchain time, off by up to three hours]Victim: Bitcoinica, LLCStatus:Amount:Total impact:Equivalent USD:(last Mt. Gox price)Equivalent in June 2013Chief transaction of interest: 7a22917744aa9ed740faf3068a2f895424ed816ed1a04012b47df7a493f056e8Time: July 04, 2012, 02:34:19 PM (Mt. Gox time)Victims:Suspect: IP 130.83.54.115Status: PendingAmount:Equivalent USD:Equivalent in June 2013Medium of theft: Mt. GoxTransactions of interest: On Mt. Gox. Withdrawal transaction was 4c61d3639f010e30ad305b294cd128f381f58fc161d0badda1f39807dc2f12f7.Time: 2012-07-13 (UTC)Victims:Suspects:Status: All funds returnedAmount:(Mt. Gox Daily Limit)Equivalent USD:(wt. avg, rounded to nearest $)Equivalent in June 2013Medium of theft: On MtGox.Time:Victim: btc-e.comSuspects:Status: PendingAmount:(Official estimate)Equivalent USD:(rounded to nearest thousand)Equivalent in June 2013Medium of theft: On BTC-E.Time:Victims: Bitfloor, creditorsStatus: Hacker not known, but IP is 178.176.218.157. Some coins repayed to creditors.Amount:Equivalent USD:(rounded to nearest)Equivalent in June 2013Transactions of interest:Time: September 28, 2012, 07:21:14 PMVictim: CdeckerStatus: Thief IP may be 178.140.220.181Amount:Equivalent USD:(rounded to nearest)Equivalent in June 2013Transactions of interest:Date: 2012-10-13Victim: 50BTC Mining PoolStatus: Unresolved.Transactions of interest:Amount: 1173Equivalent in June 2013: 127Time:Victim: Various, incl. MralbiStatus: Thief IP may be:Amount:Total:Equivalent USD:(rounded to nearest thousand)Equivalent in June 2013Transactions of interest:Time: Discovered February 13, 2013Victim: Bit LC Inc. and minersStatus: Suspected theft by Erick, could be misunderstanding.Amount:Equivalent USD:(rounded to nearest thousand)Equivalent in June 2013Transactions of interest:Time: March 10, 2013Victim: BTCGuild mining poolStatus: 16 thieves, one has returned 47Amount:Equivalent USD:(rounded to nearest)Equivalent in June 2013Time: 2013-03-11Victims: OKPay, many mining pools including slush, BTCGuild, etc.Status: OKPay double-spend attack resolved.Amount:Equivalent in June 2013Date: 2011-10-03 to 2013-03-28Victims: Investors in Bitcoin Rain, account holders on Mercado Bitcoin.Perpetrator: Leandro CésarAmount:Equivalent in June 2013Date: February to April 2013Victim: Investors and creditors of ZigGapAmount:Equivalent in June 2013: 919Time: 2013-04-19Victim: Ozcoin mining poolStatus: Thief, a user of Strongcoin, known but not disclosed. Strongcoin seized funds and returned 568to the mining pool operator.Amount:Equivalent in June 2013Time: 2013-07-15Victim: Just-Dice investors, DooglusSuspect: Just-Dice.com user celeste, who claims he was hacked.Status: Bets rolled back.Amount:Equivalent USD:Equivalent in June 2013Dates:Victim: Silk Road, Ross Ulbricht, Silk Road usersPerpetrator: FBI seizureAmount:Total:Equivalent in June 2013Date: 2013-10-26(disputed)Victim: Inputs.io, passed on to creditors.Perpetrator: Accusations of inside job.Transaction of interest: 9536feebe3a50b94f85ca27d56e669a7209bd4188385d55c5b97227c95cf7f74Amount:4100Time: ?Suspects:Victim: Kronos.ioStatus: Legal action possibly pendingAmount:(official estimate)Amount in June 2013Some thefts in Bitcoin's history, although severe and damaging to Bitcoin users, did not involve the theft of over one thousand bitcoins. These thefts are listed below.Other thefts are minor, but are unique in some manner (for example, interesting methods or a first of its kind).This section is reserved for possible thefts and scams that bear mentioning. It is not an endorsement, and the presence on this lista scam. At the moment, no thefts are listed here.