DisclosureLens
AccidentalFinancial ServicesFinanceMisdeliveryCustomer Data InvolvedIdentity (basic)Financial accountMediumResolved

JPMorgan Chase Bank, N.A.

bd_833f8b0e11584e3a · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Aug 13, 2021

To disclose

—

Affected

7state residents only

Confidence

68%

JPMorgan Chase Bank, N.A. notified Montana residents of a technical issue where a customer may have mistakenly viewed another customer's account information (balances, transactions, name, account numbers) on chase.com or the mobile app. No evidence of inappropriate use was found. Chase offered one year of free credit monitoring via Experian.

Incident timeline — partial

? — ?

Breach window unknown

Aug 13, 2021

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed7 affectedView incident

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.