May 7, 2019 - Binance hot wallet hack 7’074 BTC

Binance announced that a “large scale security breach” was discovered earlier on May 7, finding that malicious actors were able to access user API keys, two-factor authentication codes and “potentially other info,” the exchange’s CEO, Changpeng Zhao, said in a letter. As a result, they were able to withdraw roughly $41 million in bitcoin from the exchange, according to a transaction published in the security notice.

“The hackers had the patience to wait, and execute well-prepared actions through multiple seemingly independent accounts at the most opportune time. The transaction is structured in a way that passed our existing security checks. It was unfortunate that we were not able to block this withdrawal before it was executed.”