Hackers stole Social Security numbers in Flagstar data breach affecting 1.5 million customers

Flagstar Bank, one of the largest financial service providers in the United States, has notified more than 1.5 million customers of a data breach in which Social Security numbers were stolen — its second incident in two years.
In a letter sent to those affected, Michigan-headquartered Flagstar revealed that hackers breached its corporate network between December 3 and December 4, 2021. After an investigation, the bank discovered on June 2, 2022 that the threat actors accessed sensitive customer details.
“Flagstar recently experienced a cyber incident that involved unauthorized access to our ne

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