Patelco Credit Union ransomware attack halts banking services for nearly half a million members

Nearly a half-million members of Patelco Credit Union, with branches across the Bay Area and Northern California, lost access to banking services following a ransomware attack over the weekend.

The Dublin-based credit union announced on social media at 7 a.m. Saturday its services were unavailable, including online banking, mobile app, direct deposits, transfers, and debit and credit card transactions.

Patelco members received an email from President and CEO Erin Mendez Sunday afternoon about a “serious security incident,” although the details about the incident were not initially disclosed.

The email said the credit union was working with cybersecurity experts to assess the situation and restore services. Mendez also said an estimated time of restoration was not available.


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