According to ChainCatcher, the full-chain NFT protocol Holograph posted on the social platform that the Holograph contract has been exploited by malicious actors, and hackers can illegally mint an additional 1 billion HLG tokens.
At present, the team has patched the initial vulnerability and is working with various trading platform partners to lock down malicious accounts. At the same time, an investigation has been launched and law enforcement agencies are being contacted.