HELENA — The Montana State Auditor and Commissioner of Securities & Insurance Office has launched an investigation into Blue Cross Blue Shield of Montana (BCBSMT) following a major data breach. According to the Auditor’s Office, the breach puts the personal and medical information of up to 462,000 Montana customers at risk.

BCBSMT is the largest health insurer in Montana.

"This breach is not just a technical lapse. This is a deeply disturbing incident with far-reaching and jaw-dropping consequences for our citizens," said Commissioner James Brown. "Montanans have every right to expect their personal data, especially sensitive health information, to be protected by the entities they trust. The severity of this breach underscores the urgent need for robust oversight and our agency to take

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