From Netflix to KFC, a huge number of firms were hacked in 2016, leaving users' accounts vulnerable.

But despite being regularly reminded not to use common passwords, which hackers can easily guess, it seems many aren't taking the warnings seriously.

A new list has revealed the most common passwords in 2016, and shows that a shocking 17 per cent of people have been safeguarding their accounts with '123456.'

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A new list has revealed the most common passwords in 2016, and shows that a shocking 17 per cent of people have been safeguarding their accounts with '123456' (stock image)

THE MOST COMMON PASSWORDS Ranking Password 1 123456 2 123456789 3 qwerty 4 12345678 5 111111 6 1234567890 7 1234567 8 password 9 123123 10 987654321 11 qwertyuiop 12 mynoob 13 123321 14 666666 15 18atcskd2w 16 7777777 17 1q2w3e4r 18 654321 19 555555 20 3rjs1la7qe 21 google 22 1q2w3e4r5t 23 123qwe 24 zxcvbnm 25 1q2w3

Keeper, a password management firm based in Chicago, looked at 10 million passwords that became public through data breaches last year.

Four of the top 10 passwords on the list are six characters or shorter, meaning cracking software and hardware can easily unscramble them in just a few seconds.

And it seems that people are big fans of using obvious number sequences as their passwords, with 123456, 1234567, 12345678, 123456789 and 1234567890 all in the top seven.

Passwords like 1q2w3e4r and 123qwe indicate that some users are attempting to use unpredictable patterns to secure their passwords.

But Keeper says: 'Their efforts are weak at best.

'Dictionary-based password crackers know to look for sequential key variations. At best, it sets them back only a few seconds.'

Some of the passwords in the top list are surprising, and appear to be random, such as 18atcskd2w and 3rjs1la7qe.

But Graham Cluley, a security expert at the State of Security, believes that these passwords indicate that bots regularly use these codes when they set up fake accounts on public email services for spam or phishing attacks.

Keeper added: 'Email providers could do everyone a favour by flagging this kind of repetition and reporting the guilty parties.'

Last year, a study at the University of Lancaster looked at why many people continue to use obvious passwords on their accounts.

Dr Jeff Yan, co-author of a paper on password guessing, said: 'Why do [some] use such obvious passwords? A main reason I think is that they're either unaware of or don't understand the risks of online security.'

He added: 'Just like everybody knows what one should do when red lights are on in the road, eventually everybody will know 123456 or the like is not a good password choice.'

Passwords like 1q2w3e4r and 123qwe indicate that some users are attempting to use unpredictable patterns to secure their passwords. But dictionary-based password crackers know to look for sequential key variations, and at best, it sets them back only a few seconds (stock image)

The researchers from Lancaster, as well as Peking and Fujian Normal universities in China, created algorithms to guess passwords based on attackers having access to different personal information.

They guessed passwords for more than 73 per cent of ordinary users' accounts.

And even for those who were more security-savvy, a third of passwords were cracked in 100 guesses.