HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

J.P. Morgan Chase Bank, N.A.

bd_1d6fdc652ca663ce · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 26, 2024

Filed

Apr 18, 2024

To disclose

7 weeks

Affected

Not disclosed

Linked

12 filings

Confidence

66%

J.P. Morgan Chase Bank, N.A. disclosed a data breach affecting plan participants of {{PlanClientName}}. Between August 26, 2021, and February 23, 2024, three authorized system users accessed reports containing names, addresses, SSNs, and bank account numbers. The incident was discovered on February 26, 2024, and remediated via a software update. Affected individuals were offered two years of credit monitoring.

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Incident timeline

undetected · 914 days

discovery → filing · 7 weeks / 52 days

Aug 26, 2021

Begins

Feb 26, 2024

Discovered

Apr 18, 2024

Filed

vs. sector median

1 wks faster

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

Vermont State AGbd_2c75438adc27bcc82024-04-18Verified by operator
Indiana State AGbd_73b14aaa9ac08d8a2024-04-18Verified
Washington State AGbd_8d03645db4f594c42024-04-18Verified
California State AGbd_17c628b4b6b443e32024-04-27 · +9dVerified by operator

Show 6 more filings ↓up to 43d gap

Oregon State AGbd_5db5795a826bccef2024-04-28 · +10dVerified by operator
California State AGbd_2f44509a28216b332024-04-29 · +11dVerified
Maine State AGbd_efe031254bd5408d2024-04-29 · +11dVerified
Oregon State AGbd_d01cecde11f4e3e72024-05-02 · +14dVerified
Montana State AGbd_d35e9bad8d06eb142024-05-06 · +18dVerified by operator
Massachusetts State AGbd_9b265c593f7a32392024-05-31 · +43dCandidate

Showing first 10 of 11 linked disclosures.

Name: J.P. Morgan Chase Bank, N.A.
norm: jp morgan chase bank

Name: J.P. Morgan Chase Bank, N.A.
norm: jp morgan chase bank
Industry: Financial Servicesllm

Discovered: Feb 26, 2024
Breach occurred: Aug 26, 2021 – Feb 23, 2024
Undetected for: 914 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Addressed the access issue
Applied a software update
Changes made: Offered two years of free credit monitoring through Experian’s IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(52 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

Vermont State AGApr 18 · first

Indiana State AGApr 18 · first

Washington State AGApr 18 · first

Delaware State AGApr 18 · first · this page

California State AG+9d

Oregon State AG+10d

California State AG+11d

Maine State AG+11d

Oregon State AG+14d

Montana State AG+18d

Massachusetts State AG+43d

Pattern: first filing Apr 18 (VT), 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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2024/05/J.P.-Morgan-Privacy-Breach-Template.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 18, 2024
Raw hash: b9c666a58a1e63defc00effe6718e087c5b8d74010e65aa12f9046c56475408a

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityJ.P. Morgan Chase Bank, N.A.

Victim entityJ.P. Morgan Chase Bank, N.A.

Incidentdiscovered Feb 26, 2024

Stated responseAddressed the access issue

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov