What happened to Optima Tax Relief?

U.S. tax resolution firm Optima Tax Relief was hit by a ransomware attack and the hackers are now leaking stolen data. The incident was reported on June 6, 2025, and was claimed by the Chaos ransomware gang, which stole data and encrypted the company's servers.

What is Optima Tax Relief?

Optima Tax Relief is a tax resolution and settlement company that specializes in helping individuals and businesses address federal and state tax issues, making the breach particularly concerning due to the sensitive financial and tax-related information they handle.

Which ransomware group attacked Optima Tax Relief?

The attack was claimed by the Chaos ransomware gang, which not only encrypted Optima Tax Relief's servers but also exfiltrated corporate data and customer case files before demanding ransom.

When was the Optima Tax Relief ransomware attack reported?

The ransomware incident affecting Optima Tax Relief was reported on June 6, 2025.

What type of sensitive information was exposed in the Optima Tax Relief breach?

The exposed data includes Social Security numbers, phone numbers, home addresses, financial details related to tax matters, client case files, and corporate data, representing highly sensitive personal and financial information.

How many people were affected by the Optima Tax Relief attack?

The number of affected individuals has not been disclosed by Optima Tax Relief or determined from publicly available information about the ransomware incident.

Has Optima Tax Relief issued a statement about the ransomware attack?

Optima Tax Relief has not issued an official statement regarding the incident or notified affected customers and authorities, despite the serious nature of the data breach and ongoing data leaks by the ransomware group.

Are the hackers actively leaking Optima Tax Relief's data?

Yes, the Chaos ransomware gang is actively leaking stolen data from Optima Tax Relief, which increases the urgency for affected individuals to take protective measures even without official notification from the company.

Incident

Optima Tax Relief hit by ransomware attack, data stolen and leaked

Q: How much data was stolen from Optima Tax Relief?

The Chaos ransomware gang claims to have exfiltrated approximately 69 GB of corporate data and customer case files from Optima Tax Relief's systems.

published: June 7, 2025

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U.S. tax resolution firm Optima Tax Relief was hit by a ransomware attack and the hackers are now leaking stolen data. Optima Tax Relief is a tax resolution and settlement company that specializes in helping individuals and businesses address federal and state tax issues.

The incident, was reported on June 6, 2025. The attack was claimed by the Chaos ransomware gang, which stole the data and encrypted the servers. The gang claim to have exfiltrated approximately 69 GB of corporate data and customer case files. The exposed data includes:

Social Security numbers
Phone numbers
Home addresses
Financial details related to tax matters
Client case files
Corporate data

The number of affected individuals has not been disclosed. The value of the incident or stolen data has not been disclosed. BleepingComputer contacted Optima Tax Relief with questions about the attack, but the company

Optima Tax Relief has not issued an official statement regarding the incident or notified affected customers and authorities.

Optima Tax Relief hit by ransomware attack, data stolen and leaked

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