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Updated about 1 month ago

Harnish Group Inc. Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving Harnish Group Inc..
•Discovered on November 6, 2025.
•Affects individuals in: Montana, Indiana.
•Confirmation level: Confirmed by regulators.

Breach confirmed

The Harnish Group Inc. breach is confirmed. If you may be affected, add your details below and we will take it from there.

Detailed summary

Harnish Group Inc. experienced a data breach that was reported on December 31, 2025. The breach occurred on November 6, 2025, and was confirmed by regulatory filings with the Montana Department of Justice and the Indiana Attorney General.

This incident affected 711 individuals. Specifically, 710 Montanans and 1 Indiana resident were impacted. The specific types of data exposed have not been explicitly detailed in the public search results, and a review of the official notification letter is needed for these details. The company operates in the insurance sector and is associated with Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance, suggesting it may have been a vendor breach.

Details can emerge later, and notices may be delayed as investigations continue.

Company Response Timeline

Breach Occurred

Nov 6, 2025

Company Discovered

Unknown

Regulator Notified

Dec 31, 2025

Consumers Notified

Dec 31, 2025

Breach Verification Status

Reports Only

Complete

Initial dark web reports of potential breach

Company Confirmed

Complete

Company has acknowledged the breach

Regulator Confirmed

Current

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Monitoring

We're monitoring this situation for developments.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

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Do you use Harnish Group Inc.?

Yes

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What should I do?

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