"Fiserv Attack Exposes 837K Flagstar Bank Clients"
"Fiserv Attack Exposes 837K Flagstar Bank Clients"
Cl0p, the Russia-linked ransomware group, added another US-based company to its MOVEit Transfer attack victims list. Flagstar Bank notified affected individuals that attackers accessed their data via Fiserv, a company the bank uses for payment processing and mobile banking. The unauthorized activity in the MOVEit Transfer environment occurred between May 27 and May 31, 2023, before the public disclosure of this vulnerability. During this time, unauthorized actors accessed vendor files transferred via MOVEit, which included Flagstar Bank and related institution customer information.