MalwareFinancial ServicesFinanceRansomwareData EncryptedTargetedIdentity (basic)Government IDPIICriticalContained

PATELCO CREDIT UNION

bd_5c6d990f0a189873 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jun 29, 2024

Filed

Aug 20, 2024

To disclose

7 weeks

Affected · nationwide

726,000126 in this filing

Linked

17 filings

Confidence

66%

Full breach record for PATELCO CREDIT UNION →4 incidents on file

Patelco Credit Union experienced a ransomware attack where unauthorized access occurred between May 23 and June 29, 2024. The breach affected 726,000 individuals, including 126 Maine residents. Personal information accessed included names, SSNs, driver's license numbers, dates of birth, and email addresses. Patelco contained the threat, restored data, notified law enforcement, and offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jun 29, 2024 → Filed with AG Aug 20, 202452d ⏱ ME AG >30d7 weeks discovery → filing

Incident timeline

undetected · 37 days

discovery → filing · 7 weeks / 52 days

May 23, 2024

Begins

Jun 29, 2024

Discovered

Aug 20, 2024

Filed

vs. sector median

2 wks faster

This filing is one of 17 about the same incident.View merged incident

A leak claim by ransomhub about this victim predates this filing by 52 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Oregon State AGbd_272abed51034ca0c2024-08-20Verified
Montana State AGbd_3490e911272cfc692024-08-20Verified
Vermont State AGbd_d9d80d2a80042b162024-08-21 · +1dVerified
Massachusetts State AGbd_f5f47c32fde9d4b32024-08-21 · +1dVerified

Show 6 more filings ↓up to 38d gap

New Hampshire State AGbd_d750bc07711391c82024-08-26 · +6dVerified
Illinois State AGbd_419d36fd8d01502a2024-09-01 · +12dVerified
Vermont State AGbd_712c20c7d06c802e2024-09-23 · +34dVerified
Washington State AGbd_c88dac2c250735a62024-09-23 · +34dVerified
Maine State AGbd_f1d3d40e3783e96c2024-09-23 · +34dVerified
New Hampshire State AGbd_6132aed4ed74bf362024-09-27 · +38dVerified

Showing first 10 of 16 linked disclosures.

Name: PATELCO CREDIT UNION
norm: patelco credit union
Domain: patelco.org
Industry: Financial Services

Name: PATELCO CREDIT UNION
norm: patelco credit union
Domain: patelco.org
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: Jun 29, 2024
Breach occurred: May 23, 2024 – Jun 29, 2024
Undetected for: 37 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 20, 2024
Affected individuals: 726,000state + nationwide
Data types: Identity (basic)Government IDPII
Data elements: Social Security numberDate of birth
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Maine Attorney General
Initial access: valid_credentials

During the incident: Contained the threat by proactively disabling all unauthorized access to our network
Restoring all data
Notified law enforcement
Worked very closely with external cybersecurity professionals
Changes made: Offering a complimentary two-year membership of Experian IdentityWorks Credit 3B
Continually evaluate and modify practices and internal controls to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(52 days from discovery to filing)
Compliance flags: ME AG >30d · 52dLeak >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jun 29, 2024
→ Filed with AG: Aug 20, 2024
52d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 29, 2024 → Filed with AG: Aug 20, 2024	52d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

Oregon State AGAug 20 · first

Montana State AGAug 20 · first

Maine State AGAug 20 · first · this page

Vermont State AG+1d

Massachusetts State AG+1d

New Hampshire State AG+6d

Illinois State AG+12d

Vermont State AG+34d

Washington State AG+34d

Maine State AG+34d

New Hampshire State AG+38d

Pattern: first filing Aug 20 (OR), last Sep 27 (NH) — a 38-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 16 — the full spread may be wider.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/4a259d7c-be2a-4074-a9c5-1e7f8496e9af.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 20, 2024
Raw hash: ee38b18dce26be6e0b17d85315502d9db198eacbddc312a99c9b268a16034113

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityPATELCO CREDIT UNION

Victim entityPATELCO CREDIT UNION

Incidentdiscovered Jun 29, 2024

Stated responseContained the threat by proactively disabling all unauthorized access to our network

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov