According to Techflow, a former contractor of Holograph Protocol used a vulnerability to mint an additional 1 billion HLG tokens on Mantle, causing the protocol to be temporarily blocked. The team is working hard to deal with the impact of this vulnerability and is working with security experts to prevent similar incidents from happening again.

The malicious actor has had his accounts frozen on multiple exchanges, and at least 200 million of the additional 1 billion HLG minted have been frozen. At the same time, the exchange has also temporarily stopped all deposits and withdrawals of HLG tokens.

The next step will be a third-party audit and continued advancement of multi-chain tokenized infrastructure and applications.

Earlier news said that the full-chain NFT protocol Holograph contract was attacked, and hackers were able to illegally mint 1 billion HLG tokens.