CZ said on Twitter that the initial analysis shows Ankr and $HAY hacks were caused by the developer private key being hacked. The hacker updated the smart contract to a more malicious one.
Binance paused withdrawals a few hrs ago, and froze about $3m that the hackers moved to Binance. CZ also confirmed that withdrawals at the arbitrageur's address were also paused, who utilized Ankr's $aBNBc contract exploit to gain over 15m $BUSD.
Binance
CZ
Security Incidents
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