Muller Insurance Data Breach Affects SSNs and More

Muller Insurance, an insurance agency licensed in 25 states, experienced a data breach. The cybersecurity incident was disclosed to the Massachusetts Attorney General's office on Oct. 1, 2025.

The data breach compromised sensitive information, including names, Social Security numbers and driver’s license details. The the total number of impacted individuals has not been released, however the type of exposed information puts Muller clients at risk of identity theft.

Muller Insurance began notifying affected individuals by mail on Oct. 1, 2025. The breach notification did not specify the exact method by which the breach occurred or identify the responsible party.

Muller Insurance's response

In addition to required state and federal disclosures, the insurance agency is offering affected individuals 24 free months of IDX credit monitoring and identity theft protection services.

If you receive a data breach notice believe your personal information may have been compromised in this breach:

• Carefully review any communication you receive from Muller Insurance and enroll in the credit monitoring services offered.
• Monitor financial accounts and credit reports for signs of identity theft.
• Consider placing fraud alerts or credit freezes with the major credit bureaus.
• Be cautious of unsolicited emails or phone calls requesting personal information.

Muller Insurance has also set up a dedicated assistance line for questions about the incident at 1-833-788-9712 which is available Monday through Friday, between 9:00 a.m. and 9:00 p.m., Eastern Time.

To learn more about the insurance agency, visit the Muller Insurance website.