Patelco Credit Union ransomware attack exposes data of over 1 million
A ransomware attack on Patelco Credit Union in California in June 2024 exposed the personal data of customers and staff. The attackers put the stolen data up for auction, and the number of people affected grew from an initial estimate of around 726,000 to more than 1 million. A $7.25 million settlement was subsequently reached in a data breach class action.
Key facts
- Affected organisation
- Patelco Credit Union
- Incident type
- Ransomware
- Occurred / detected
- Not confirmed
- Scale of damage
- Personal data of more than 1 million people, including customers and staff
- Cause / method
- Theft of personal data in a ransomware attack
- Location
- United States
Timeline
- Reports emerged of confusion among Patelco Credit Union members ahead of the holiday following the ransomware attack.
- Patelco Credit Union said the June breach had exposed the personal data of customers and staff.
- As the stolen data was put up for auction, the number of people affected was confirmed at around 726,000.
- The number of people affected by the data breach rose to more than 1 million.
- The settlement in the data breach class action was reported to be $7.25 million.
13 related reports
- Ransomware attack on Patelco Credit Union causes confusion ahead of holiday weekend
- Patelco Credit Union Data Breach Lawsuit Investigation
- Patelco Credit Union says personal information of customers, employees exposed in June data breach
- California credit union confirms 726k affected by June ransomware attack
- Patelco Credit Union Says Breach Impacts 726k After Ransomware Gang Auctions Data
- Patelco Credit Union confirms data breach affecting 726,000 customers
- Patelco Breach Affected 726,000 Customers and Employees
- Breach exposed information of more than 500,000 credit union members
- Patelco Credit Union’s cyberattack hits bottom line
- Patelco Credit Union Data Breach Impacts Over 1 Million People
- Patelco Credit Union data breach impacted over 1 million people
- Patelco Credit Union taps S.F. Fed to strengthen leadership after cyberattack - San Francisco Business Times
- $7.25M Patelco Credit Union data breach class action settlement
Other incidents at Patelco Credit Union
Patelco Credit Union ransomware attack compromises member data
Impact: Compromise of member personal information and losses of millions of dollars
Patelco Credit Union was hit by a ransomware attack that led to unauthorised access to members' personal information. In June 2025, the chief executive said the cyber-attack had caused losses of millions of dollars.
Related reports: 2 · last report →Ransomware disrupts financial services at Patelco Credit Union
500kImpact: Disruption of financial services for about 500,000 members and an investigation into a related data breach
US-based Patelco Credit Union was hit by a ransomware attack on 29 June 2024 and shut down some of its banking systems. Online and mobile banking services and some transactions were disrupted, and an investigation was also launched into a data breach affecting about 500,000 members. On 8 July, the credit union said its network had been stabilised.
Related reports: 12 · last report →
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.