Tax Relief Turmoil: Chaos Ransomware Hits Optima, Leaks 69GB of Sensitive Data
Optima Tax Relief had a taxing day when Chaos ransomware actors leaked 69 GB of data, including sensitive tax documents. The ransomware gang, not to be confused with another of the same name, pulled a double-extortion trick by stealing data and encrypting servers. Optima’s clients, meanwhile, are left hoping for a refund on chaos.

Hot Take:
Looks like “Optima Tax Relief” got an unexpected audit from the Chaos ransomware gang. Who knew the only thing getting resolved here would be our trust in secure tax filings? It seems the only chaos Optima was prepared for was tax season, not a cyber heist!
Key Points:
- Optima Tax Relief, a U.S. tax resolution firm, was hit by a Chaos ransomware attack.
- The attackers claim to have stolen 69 GB of sensitive data, including customer case files.
- This was a double-extortion attack – data was stolen and servers were encrypted.
- Chaos ransomware is a new player, launching in March 2025, with Optima being one of its victims.
- Optima Tax Relief has not yet responded to queries regarding the breach.
Already a member? Log in here