ChainCatcher news, according to the official report from ZKsync, the security team discovered that an administrator account of the airdrop contract was compromised, allowing the attacker to control and sell approximately 5 million dollars worth of unclaimed ZK airdrop tokens. The incident was caused by a single key leak and did not affect the protocol itself or the ZK token contract, with user funds remaining secure. The official team is conducting an investigation and will release a detailed report later.