ZkSync experienced a security breach involving a compromised administrator account, which resulted in unauthorized access to approximately $5 million worth of ZK tokens. These tokens were unclaimed from the previous ZkSync airdrop.
The attacker has reportedly already sold these tokens on the market, causing a temporary price drop of 15-20%. However, the price appears to be recovering at this time.
This seems to be a contained incident affecting only unclaimed airdrop tokens rather than user funds or core protocol assets.