Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Patelco Credit Union

Disclosed Jul 1, 20241,009,472 affectedConfirmed

Official notice

RansomHub attack on Patelco shuts online banking and exposes 726,000 people

Patelco Credit Union suffered a ransomware attack on June 29, 2024 that shut down customer-facing banking systems for about two weeks. In August it told regulators that names, dates of birth, Social Security numbers and driver's license numbers of about 726,000 people were exposed; RansomHub claimed the attack and published the data.

What is known

People affected1,009,472 (as reported by the organization)
DisclosedJul 1, 2024
DiscoveredJun 29, 2024
HappenedMay 23, 2024
AttackRansomware
Data exposedNamesDates of birthSocial Security numbersGovernment IDs
SectorFinance · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Patelco Credit Union
Official noticeatg.wa.gov
Washington Attorney General breach notice: Patelco Credit Union
Official noticejustice.oregon.gov
Oregon DOJ breach notice: Patelco Credit Union
Newstherecord.media
California credit union confirms 726k affected by June ransomware attack
Newsbleepingcomputer.com
Patelco notifies 726,000 customers of ransomware data breach
Newsmercurynews.com
Half a million Patelco Credit Union members locked out of credit union accounts due to security breach
Official noticeago.vermont.gov
Vermont Attorney General: 2024-09-23 Patelco Credit Union Data Breach Notice to Consumers
Official noticeago.vermont.gov
Vermont Attorney General: 2024-08-21 Patelco Credit Union Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2024 data breach report: Patelco Credit Union

Notices filed

TotalJul 1, 2024
Research726,000 people
Residents of CAAug 20, 2024
California AGCount not stated
Residents of WAAug 20, 2024
Washington AG4,286 people
Residents of ORAug 20, 2024
Oregon DOJ726,000 people
Residents of INAug 20, 2024
Indiana AG1,403 people
Residents of VTAug 21, 2024
Vermont AGCount not stated
Residents of WASep 23, 2024
Washington AG8,176 people
Residents of VTSep 23, 2024
Vermont AGCount not stated

Other breaches at Patelco Credit Union

Breach, details not statedBreach notice filed with the California AG, details not stated.FinanceUSApr 12, 2023
History of this record
records2026-09-25
726000 to 1009472by backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2024-08-21-patelco-credit-union-data-breach-notice-consumersby backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2024-09-23-patelco-credit-union-data-breach-notice-consumersby backfillSource
data_types2026-09-25
[] to ["names","dob","ssn","government-id"]by seedSource
records_basis2026-09-25
empty to organizationby seedSource
records2026-09-25
empty to 726000by seedSource
disclosed2026-09-25
2024-08-20 to 2024-07-01by seedSource
summary2026-09-25
empty to Patelco Credit Union suffered a ransomware attack on June 29, 2024 that shut down customer-facing banking systems for about two weeks. In August it told regulators that names, dates of birth, Social Security numbers and driver's license numby seedSource
title2026-09-25
empty to RansomHub attack on Patelco shuts online banking and exposes 726,000 peopleby seedSource
attack2026-09-25
unknown to ransomwareby backfillSource
discovered2026-09-25
empty to 2024-06-29by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Patelco Credit Union