HackingFinancial ServicesFinanceCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

U.S. Bank National Association

bd_89417be5e4a0d330 · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 21, 2020

Filed

Dec 9, 2020

To disclose

16 weeks

Affected · nationwide

2,0523 in this filing

Linked

18 filings

Confidence

65%

Full breach record for U.S. Bank National Association →34 incidents on file

U.S. Bank, N.A. reported a cybersecurity incident on July 30, 2020, discovered on August 21, 2020, involving unauthorized access to a network server. The breach compromised names and Social Security Numbers of 2,052 individuals, including 3 Maine residents. The bank provided written notification on December 9, 2020, and offered 24 months of identity theft protection services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Aug 21, 2020 → Filed with AG Dec 9, 2020110d ⏱ ME AG >30d16 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 22 days

discovery → filing · 16 weeks / 110 days

Jul 30, 2020

Begins

Aug 21, 2020

Discovered

Dec 9, 2020

Filed

vs. sector median

+7 wks slower

This filing is one of 18 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_79886892df92a2182020-12-09Verified by operator
California State AGbd_83e5a3ac54bd73f32020-12-22 · +13dVerified by operator
California State AGbd_acdaf1a744033ff92020-11-23 · +16dVerified by operator
California State AGbd_359b08840a4dbf122020-11-06 · +33dVerified by operator

Show 6 more filings ↓up to 56d gap

California State AGbd_9b96c2653dd4d85c2020-10-28 · +42dVerified by operator
California State AGbd_66a8642b145c21522020-10-21 · +49dVerified by operator
California State AGbd_6eaa424a28ec93db2021-02-03 · +56dVerified by operator
Maine State AGbd_7ccfebd29269e7082021-02-03 · +56dVerified by operator
California State AGbd_62ad177f04ee8a092020-10-14 · +56dVerified by operator
Maine State AGbd_810d46cea34ce9722020-10-14 · +56dVerified by operator

Showing first 10 of 17 linked disclosures.

Name: U.S. Bank National Association
norm: us bank national

Name: U.S. Bank National Association
norm: us bank national
Industry: Financial Servicesllm

Discovered: Aug 21, 2020
Breach occurred: Jul 30, 2020
Undetected for: 22 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 9, 2020
Affected individuals: 2,052state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected consumers
Offered 24 months of identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(110 days from discovery to filing)
Compliance flags: ME AG >30d · 110d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Aug 21, 2020
→ Filed with AG: Dec 9, 2020
110d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 21, 2020 → Filed with AG: Dec 9, 2020	110d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 2 states

View merged incident ↗

California State AGOct 14 · first

Maine State AGOct 14 · first

California State AG+7d

California State AG+14d

California State AG+23d

California State AG+40d

California State AG+56d

Maine State AG+56d · this page

California State AG+69d

California State AG+112d

Maine State AG+112d

Pattern: first filing Oct 14 (CA), last Feb 3 (ME) — a 112-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 17 — 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-a1252b4f8318/08113d13-e58e-4fe6-b861-d4cac82243b0.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 9, 2020
Raw hash: ba7fc9b9c4b50fba2c3b572bc1115cda4f7282451f7acaa8e5b27e63f3360064

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityU.S. Bank National Association

Victim entityU.S. Bank National Association

Incidentdiscovered Aug 21, 2020

Stated responseSent written notification to affected consumers

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov