Sentinel Security Life (Montana)

Recorded filings

Data breach lawsuits in Montana, most recently December 2025.

1. December 2025 · Montana

   Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company Data Breach Notification Letter

   Data exposed: Social Security numbers, Dates of birth, Financial account numbers, Home addresses

   Settlement and complaint details · Live case list

Got a notification letter?

If you received a Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company data breach notification letter, your personal information may have been exposed in a breach like the lawsuits recorded here. You can ask about the Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company filings on the national overview contact form. Nothing on this site is legal advice.

Where this case fits

• Montana data breach filings 2026
• December 2025 data breach digest
• United States data breach filings 2026 - national tracker