Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company data breach

Clerk's notes

Sentinel Security Life Insurance Company and Atlantic Coast Life Insurance Company officially reported a data breach to the state of Montana on December 30, 2025. This filing indicates that an incident of unauthorized system access occurred on April 7, 2025, and the matter is currently under investigation by the companies.

The breach involved unauthorized access to the systems managed by these insurance providers. For individuals who have received a direct notification letter, this means their personal information held by Sentinel Security Life or Atlantic Coast Life may have been exposed as a result of this security event.

Upon receiving a data breach notification, it is crucial to carefully read the letter to understand the information involved and any specific recommendations provided. Monitoring your accounts and financial statements for any unusual activity is a recommended step following such an incident.

Individuals in Montana who have been impacted by this breach and received a notification letter may be eligible for a legal review of their case. Such a review can help you understand your rights and potential recourse concerning the exposure of your data.

Considering a free case review offers a no-obligation opportunity to discuss the specifics of your situation. This process can help determine if legal action is appropriate for your circumstances. Please note that this is attorney advertising and does not guarantee results or create an attorney-client relationship.

If a notification letter about this breach reached you, see every Montana data breach on file or browse all cases.