1st Source Bank Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating 1st Source Bank regarding its recent data breach. The 1st Source Bank data breach involved sensitive personal identifiable information belonging to an undetermined number of individuals.


1st Source Bank is a locally controlled bank serving communities in northern Indiana and southwestern Michigan. Founded in 1863, 1st Source Bank provides a variety of banking products and services to individuals and businesses, including checking and savings accounts, loans and credit, investing and wealth management services, and more. With nearly $8 billion in assets, 1st Source Bank is one of the largest locally controlled financial institutions in the region, and a leading financier of specialty groups such as aircraft, long haul trucks, and more.3 Headquartered in South Bend, Indiana, 1st Source Bank has banking centers in 19 counties and employs over 1,100 individuals.


On June 1, 2023, 1st Source Bank discovered that it had experienced a data breach in which sensitive personal identifiable information in its systems may have been accessed and acquired. Through its investigation, 1st Source Bank determined that an unauthorized actor may have accessed and acquired this sensitive information through a vulnerability in the MOVEit file sharing platform used by 1st Source Bank on May 27, 2023. In November 2023, 1st Source bank began notifying individuals whose information may have been impacted. The type of information potentially exposed includes:

  • Name
  • Social Security number
  • Driver’s license number
  • Government-issued ID number (e.g., passport, state ID card)

If you received a breach notification letter from 1st Source Bank:

We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at (608) 237-1775 or sam@turkestrauss.com.

If you were impacted by the 1st Source Bank data breach, you may consider taking the following steps to protect your personal information.

  1. Carefully review the breach notice and retain a copy;
  2. Enroll in any free credit monitoring services provided by 1st Source Bank:
  3. Change passwords and security questions for online accounts;
  4. Regularly review account statements for signs of fraud or unauthorized activity;
  5. Monitor credit reports for signs of identity theft; and
  6. Contact a credit bureau(s) to request a temporary fraud alert.

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