ZKSync Airdrop Contract Exploit Limited to 111M Tokens, Protocol Remains Secure
ZKSync Airdrop Contract Exploit Limited to 111M Tokens, Protocol Remains Secure
🕵️ Airdrop Gone Wrong
A compromised admin account exploited ZKSync's airdrop distribution contracts, minting approximately 111M unclaimed ZK tokens (~0.45% of total supply) worth ~$5M.
Key points:
- Exploit contained to airdrop contracts only
- No further token minting possible
- Main protocol, ZK token contract, and governance systems unaffected
- User funds were never at risk
The attacker still holds majority of funds at address: 0xb1027ed67f89c9f588e097f70807163fec1005d3
ZKSync team is coordinating with exchanges and @_seal_org for recovery. Attacker encouraged to contact security@zksync.io to negotiate return.
Update: the investigation has revealed that the account that was the admin of the three airdrop distribution contracts had been compromised. The compromised account address is 0x842822c797049269A3c29464221995C56da5587D. The attacker called the sweepUnclaimed() function that
ZKsync security team has identified a compromised admin account that took control of ~$5M worth of ZK tokens — the remaining unclaimed tokens from the ZKsync airdrop. Necessary security measures are being taken. All user funds are safe and have never been at risk. The ZKsync
Update: further investigation has confirmed yesterday’s findings that the compromise was contained to the airdrop distribution contracts and no additional ZK tokens can be minted from this contract. User funds are secure and were never at risk. The ZKsync protocol, ZK token
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