Flagstar Bank is warning that over 800,000 US customers had their personal information stolen by cybercriminals due to a breach at a third-party service provider.
Flagstar, now owned by the New York Community Bank, is a Michigan-based financial services provider that, before its acquisition last year, was one of the largest banks in the United States, having total assets of over $31 billion.
A data breach notification sent to impacted customers explains that Flagstar was indirectly impacted by Fiserv, a vendor it uses for payment processing and mobile banking services.
Fiserv was breached in the widespread CLOP MOVEit Transfer data theft attacks that have impacted over 64 million people and two thousand organizations worldwide...