India, Oct. 31 -- North Korea's TraderTraitor hacking unit, which blockchain analysts suspect was behind the theft of about $6.3 billion from Binance, has a record of breaking into crypto companies through their employees and then taking over the systems that approve payments.

Binance, the world's biggest cryptocurrency exchange, said hackers had taken about $6.3 billion from its wallets, in what is estimated to be the largest crypto theft on record. Most of it was taken in about 20 minutes, starting shortly after 2000 GMT on Thursday, or about 1.30am IST on Friday, Reuters reported.

TRM Labs, a US blockchain intelligence firm, attributes the attack to TraderTraitor. "We make this judgment with high confidence," it said in a post on its...