HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHighContained

Flagstar Bank, National Association

bd_e0acf0e4ea72fff3 · schema v1 · pii pii-v1

Severity

High

Discovered

Jan 24, 2021

Filed

Mar 15, 2021

To disclose

7 weeks

Affected

61,006state residents only

Linked

8 filings

Confidence

69%

Full breach record for Flagstar Bank, National Association →7 incidents on file

Flagstar Bank, FSB notified Washington AG of a data breach involving third-party vendor Accellion's file-sharing platform. Unauthorized access occurred, exposing consumer PII including names, SSNs, DOBs, and financial account numbers. 61,006 Washington residents affected. Incident discovered Jan 24, 2021; notifications sent March 15, 2021. Flagstar engaged forensic experts, terminated vendor use, and offered 2 years of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d7 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 7 weeks / 50 days

Jan 24, 2021

Discovered

Mar 15, 2021

Filed

vs. sector median

3 wks faster

This filing is one of 8 filings about the same incident.View merged incident

Part of Accellion supply-chain incident (2021) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Massachusetts State AGbd_34345641741391fa2021-03-15Verified
Indiana State AGbd_4ac063fe07397ef92021-03-15Verified
California State AGbd_4d259a5e238333b32021-03-15Verified
Oregon State AGbd_74b910abb5f0a7242021-03-15Candidate

Show 3 more filings ↓up to 3d gap

Montana State AGbd_99bd7b6b318401122021-03-15Verified
Maine State AGbd_9ac79c69f97945562021-03-15Verified
New Hampshire State AGbd_250cebdc817084c32021-03-12 · +3dVerified

Name: Flagstar Bank, National Association
norm: flagstar bank national

Name: Flagstar Bank, National Association
norm: flagstar bank national
Industry: Financial Servicesllm

Discovered: Jan 24, 2021
Materiality determined: —
Notification sent: Mar 15, 2021
Affected individuals: 61,006state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: NameSocial Security numberDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle Unknowndexposure Unknownd
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement
Initial access: supply_chain

During the incident: Terminated its use of the Accellion platform involved in the incident
Transitioning to another cloud-based product
Deploying additional detection and response tools across the Company’s network
Engaged a team of third-party forensic experts to investigate
Notified law enforcement
Changes made: Arranged to make credit monitoring and identity repair services available to them at no cost for two years
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(50 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

New Hampshire State AGMar 12 · first

Massachusetts State AG+3d

Indiana State AG+3d

California State AG+3d

Oregon State AG+3d

Montana State AG+3d

Maine State AG+3d

Washington State AG+3d · this page

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM10425.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 15, 2021
Raw hash: 5eca4c9a3e8df62077d4da9533515f7299e5d60ebba5b2fb880e1e87768826e2

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityFlagstar Bank, National Association

Victim entityFlagstar Bank, National Association

Incidentdiscovered Jan 24, 2021

Stated responseTerminated its use of the Accellion platform involved in the incident

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com