AccidentalFinancial ServicesFinanceMisconfigurationData MishandlingSupply Chain (3P Vendor)Customer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountFinancialCriticalResolved

JPMorgan Chase Bank, National Association

bd_efe031254bd5408d · schema v1 · pii pii-v1

Severity

Critical

Discovered

Feb 26, 2024

Filed

Apr 29, 2024

To disclose

9 weeks

Affected · nationwide

451,8091,683 in this filing

Linked

12 filings

Confidence

50%

Full breach record for JPMorgan Chase Bank, National Association →94 incidents on file

A software issue in a vendor-provided system for JPMorgan Chase's Benefit Payment Services product allowed three authorized users (employees of JPMC clients or their benefit administrators) to access and download reports containing personal and financial information of retirement plan participants they were not entitled to see. The unauthorized access occurred on various dates between August 26, 2021, and February 23, 2024. The issue was discovered on February 26, 2024. The exposed data included names, Social Security numbers, mailing addresses, payment amounts, and bank account information.

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Maine clockDiscovered Feb 26, 2024 → Filed with AG Apr 29, 202463d ⏱ ME AG >30d9 weeks discovery → filing

Incident timeline

undetected · 914 days

discovery → filing · 9 weeks / 63 days

Aug 26, 2021

Begins

Feb 26, 2024

Discovered

Apr 29, 2024

Filed

vs. sector median

+1 wks slower

This filing is one of 12 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_2f44509a28216b332024-04-29Verified
Oregon State AGbd_5db5795a826bccef2024-04-28 · +1dVerified by operator
California State AGbd_17c628b4b6b443e32024-04-27 · +2dVerified by operator
Oregon State AGbd_d01cecde11f4e3e72024-05-02 · +3dVerified

Show 6 more filings ↓up to 32d gap

Montana State AGbd_d35e9bad8d06eb142024-05-06 · +7dVerified by operator
Delaware State AGbd_1d6fdc652ca663ce2024-04-18 · +11dVerified
Vermont State AGbd_2c75438adc27bcc82024-04-18 · +11dVerified by operator
Indiana State AGbd_73b14aaa9ac08d8a2024-04-18 · +11dVerified
Washington State AGbd_8d03645db4f594c42024-04-18 · +11dVerified
Massachusetts State AGbd_9b265c593f7a32392024-05-31 · +32dCandidate

Showing first 10 of 11 linked disclosures.

Name: JPMorgan Chase Bank, Dearborn
norm: jpmorgan chase bank dearborn

Name: JPMorgan Chase Bank, National Association
norm: jpmorgan chase bank national
Industry: Financial Servicesllm

Discovered: Feb 26, 2024
Breach occurred: Aug 26, 2021 – Feb 23, 2024
Undetected for: 914 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 18, 2024
Affected individuals: 451,809state + nationwide
Data types: Identity (basic)Government IDFinancial accountFinancial
Data elements: Social Security number
Attack vector: Misconfiguration
Threat actor: Partner

During the incident: Addressed the access issue.
Confirmed the users’ access had been corrected.
Tested and applied a software update.
Changes made: Offered 24 months of identity theft protection services through Experian.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(63 days from discovery to filing)
Compliance flags: ME AG >30d · 63dME CRA notice due
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: Feb 26, 2024
→ Filed with AG: Apr 29, 2024
63d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 26, 2024 → Filed with AG: Apr 29, 2024	63d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

Delaware State AGApr 18 · first

Vermont State AGApr 18 · first

Indiana State AGApr 18 · first

Washington State AGApr 18 · first

California State AG+9d

Oregon State AG+10d

California State AG+11d

Maine State AG+11d · this page

Oregon State AG+14d

Montana State AG+18d

Massachusetts State AG+43d

Pattern: first filing Apr 18 (DE), last May 31 (MA) — a 43-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 11 — 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-a1252b4f8318/389144e8-425a-471b-9879-f5fcd7f16b96.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 29, 2024
Raw hash: 3fc571e671e9e9dda69f0a1ce1bcfd081f35e59f37635642f5d0f6b94d09640b

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityJPMorgan Chase Bank, Dearborn

Victim entityJPMorgan Chase Bank, National Association

Incidentdiscovered Feb 26, 2024

Stated responseAddressed the access issue.

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov