A California teenager has been arrested on accusations that he used an increasingly popular type of scam called SIM swapping, to steal a total of 156 Bitcoins from innocent victims.

The arrest, which was initially reported by Vice News’ Motherboard, came on August 17th, after the police wrapped up an investigation that resulted in 19 year old Xzavyer Narvaez being accused of a total of seven counts of computer crimes, identity fraud, and grand theft. The charges came after cryptocurrency exchange Bittrex and cryptocurrency payment provider BitPay gave internal records to US law enforcement.

Naravaez used a scam called SIM swapping to steal the Bitcoin, which is a relatively new scam first seen about a month ago following the arrest of Joel Ortiz. The scam consists of a bad actor hijacking phone numbers and using those phone numbers to gain access to the accounts attached to them, changing passwords and locking people out of their own accounts. The easiest way for SIM swappers to profit from a stolen phone number is to access user’s cryptocurrency accounts and withdraw funds.

Investigators also found that Narvaez had used a portion of the stolen funds to purchase a 2018 McLaren, paying partially with Bitcoin, through BitPay. While tracing Narvaez’s purchases through BitPay, they found that he had seen a flow of approximately 157 Bitcoins (worth approximately $1 million) according to court documents.

Narvaez was connected to previously caught SIM swapper Joel Ortiz after law enforcement found that Ortiz had logged into Narvaez’s Gmail account. After following information provided by AT&T about Narvaez’s phone records, they found that he too had been hijacking phone numbers.

Recently, an American investor filed a lawsuit against AT&T for $224 million, claiming that he had lost $24 million as a result from two separate SIM swap scams over a seven-month period. He is requesting $24 million in compensation from AT&T, as well as $200 million in punitive damages from the service provider.