The Crypto24 ransomware group has claimed responsibility for a cyberattack on U.S. Vanadium Holding Company LLC, from which it successfully exfiltrated over 300GB of sensitive data. 

According to reports, the stolen information includes:

Internal company documents

Customer and project information

Other data stored within their internal systems 

The incident was reported publicly by the ransomware group around October 21, 2025, on their leak site, applying a \"double extortion\" model where they threaten to release the data if a ransom is not paid. AMG Vanadium LLC was not explicitly named in the search results as a direct victim, only U.S. Vanadium Holding Company LLC was mentioned.