Holograph Protocol, a full-chain NFT protocol, released a vulnerability update. A former contractor exploited the vulnerability to mint an additional 1 billion HLG tokens on Mantle, resulting in the protocol being temporarily blocked. The malicious actor has been frozen out of accounts on multiple exchanges, and at least 200 million of the extra 1 billion HLG tokens have been frozen. At the same time, exchanges have temporarily halted all HLG token access and trading. Third-party audits will be conducted, and multi-chain tokenization infrastructure and applications will continue to be developed.