An anonymous hacker managed to transfer EOS 2.09 mln (approximately $7.7 mln) from a hacked account due to a probably failed blacklist update by the EOS block producer (BP), which was signaled in BP EOS42 Telegram channel.
The security system of cryptocurrency exchange Huobi recorded the movement of assets to their accounts using the data obtained from the blacklist of the EOS Core Arbitration Forum (ECAF). Following that, Huobi froze accounts and related assets, posting a tweet about the incident.
On Feb 22 at 17:35 (GMT+8), the Huobi Security team monitored that #ECAF (EOS Core Arbitration Forum) blacklisted accounts had sudden flow of assets into Huobi accounts. These $EOS accounts have subsequently been frozen, including relevant assets related to these accounts.— Huobi (@HuobiGlobal) 23 февраля 2019 г.
Image courtesy of Lachaine crypto