PhysicalFinancial ServicesFinanceLossCustomer Data InvolvedIdentity (basic)Financial accountLowContained

JPMorgan Chase Bank, National Association

bd_be0ba12ad0c2a6e8 · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Oct 1, 2026

To disclose

—

Affected

1state residents only

Confidence

70%

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

JPMorgan Chase Bank, N.A. notified Massachusetts residents that a package containing checks and transaction paperwork went missing from a courier on or around August 7, 2026. The package, originating from a Brooklyn, NY branch, may have contained names, addresses, and account numbers. The bank is working with the courier to locate the package and has opened a claim. Customers are advised to monitor accounts and consider fraud alerts or security freezes.

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Incident timeline

Aug 7, 2026

Begins

Oct 1, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

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

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

Discovered: —
Breach occurred: Aug 7, 2026
Materiality determined: —
Notification sent: Oct 2, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1052 Exfiltration Over Physical Medium
Third party: via Courier

During the incident: Working with the courier to locate the package
Opened a claim with the courier
Changes made: Advised customers to place a one-year fraud alert on their credit file
Advised customers to place a security freeze on their credit file
Advised customers to order free annual credit reports
Advised customers to monitor credit and financial accounts for unauthorized activity
Offered to provide copies of past statements at no cost
Offered to close affected accounts and open new ones with new account numbers
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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.mass.gov/doc/2026-1702-jp-morgan-chase-bank-na/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2026
Raw hash: 85110226be2c685bbedc8b397bcf1761799addeb66a78e2815a4e607b13b1413

Reporting entityJPMorgan Chase Bank, National Association

Victim entityJPMorgan Chase Bank, National Association

IncidentUnknown

Stated responseWorking with the courier to locate the package

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov