City of Michigan City IN Investigates September 2025 Data Breach

The City of Michigan City, Indiana, has filed notice of a data breach event that took place on September 23, 2025. The incident was formally reported to regulators on November 19, 2025, and an investigation into its scope and impact is ongoing.

While the City of Michigan City has confirmed a breach of its systems, the public filing does not specify the exact nature of the security incident or the categories of personal information that may have been compromised. The notice generally indicates that individuals' personal data was involved.

Individuals who have received a notification or have reason to believe their information may be affected should take proactive steps to protect themselves. This includes carefully reviewing all financial statements, credit reports, and account activity for any unauthorized or suspicious transactions.

It is also advisable to remain cautious about unsolicited communications, such as emails, phone calls, or texts, that request personal details. Always verify the authenticity of such requests directly with the organization by using official contact information, not details provided in the suspicious communication.

This information is based on public records filed with state regulators. Further details, including specific data types or the number of affected individuals, were not made public in the initial filing.