JPMorgan Chase Bank, National Association — August 2021 breach

Clustered 8 filings across 7 jurisdictions · filing window Apr 15, 2024 → May 31, 2024. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

8 filings

States

Affected · reported

451,809

First → last filing

Apr 15, 2024 → May 31, 2024

Merge confidence

100%

incident inc_3be3d61e0d0542b3 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 8 regulatory filings. Intrusion Aug 26, 2021–Feb 26, 2024, discovered Feb 26, 2024 — the first regulatory filing landed 49 days later (flagged late). 451,809 individuals reported across the linked filings. Data reported: Government ID, Financial account, Identity (basic), and 1 more. Notifications rolled out on a 46-day schedule across 8 filings beginning Apr 15, 2024. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

49days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

46days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksOregon✗ OR AG >45dWashington⏱ WA AG >30dMaine⏱ ME AG >30d · 63dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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