A 2,300-employee, $654-billion-AUM* fund firm appears to have dodged a small cybersecurity incident at its publicly traded parent in Minnesota.

A spokesperson with Columbia Threadneedle, the asset management arm of Ameriprise, writes to MFWire that a recent Ameriprise data breach is "not related to Columbia Threadneedle," but is specific to Ameriprise's wealth management business. On September 8, the Ameriprise Financial team reported to the Massachusetts Office of Consumer Affairs and Business Regulation about a recent data breach at the Minneapolis-based company, and on September 11 the Ameriprise folks reported the breach to the Office of the Maine Attorney General.

The Columbia Threadneedle spokesperson referred further inquiries to an Ameriprise spokesperson. That Ameriprise spokesperson declined to comment.

Robert Severson, manager of electronic crime investigations at Ameriprise Financial, did not immediately return a phone call and an email for comment.

Ameriprise's recent filings with Maine and Massachusetts reveal that the recent breach occurred on August 26 and affected only two people: one Maine resident and one Massachusetts resident. According to a notification letter the Ameriprise team sent out to the affected individuals, the breach involved personal information (name, address, and Social Security number) being inadvertently emailed to an unintended recipient.

"We have taken steps to protect your accounts from unauthorized activity. This includes instructing our service associates to use extra caution when verifying callers and confirming the signature on written requests related to your accounts," Jen Swihart, director of compliance at Ameriprise, writes in the letter to the affected individuals.

To help the affected individuals, the Ameriprise team is offering 12 months of an Equifax credit monitoring program.

As of June 30, 2025. 

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