HackingFinancial ServicesFinanceVulnerability ExploitZero-DayData ExfiltratedCustomer Data InvolvedSupply Chain (3P Vendor)Identity (basic)Government IDMediumContained

Flagstar Bank, National Association

bd_ba1cee24773c7665 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 1, 2023

Filed

Nov 6, 2023

To disclose

5 days

Affected

6state residents only

Linked

15 filings

Confidence

66%

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

Flagstar Bank, N.A. notified the New Hampshire Attorney General that its third-party vendor, Fidelity Information Services (FIS), experienced a security incident involving the MOVEit file transfer system. The incident, which occurred between May 27 and 31, 2023, exploited a zero-day vulnerability allowing unauthorized access to vendor files containing customer personal information. Flagstar determined 6 New Hampshire residents were affected. The vendor patched systems, and Flagstar provided 2 years of free credit monitoring to affected individuals. Notices were sent starting November 6, 2023.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 158 days

discovery → filing · 5 days

May 27, 2023

Begins

Nov 1, 2023

Discovered

Nov 6, 2023

Filed

vs. sector median

8 wks faster

This filing is one of 15 about the same incident.View merged incident

Part of FISERV, INC. supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_267688291d7bda9f2023-11-05 · +1dVerified
Massachusetts State AGbd_a8b93efc400ce2172023-11-05 · +1dVerified
Indiana State AGbd_25963c4420d351012023-10-06 · +31dVerified
Oregon State AGbd_bebe196ceda9728b2023-10-06 · +31dVerified

Show 6 more filings ↓up to 51d gap

Massachusetts State AGbd_25176ff42413efea2023-10-05 · +32dVerified
Maine State AGbd_2d517ec1c38f95f82023-10-05 · +32dCandidate
Vermont State AGbd_48a0d2a33519786f2023-10-05 · +32dVerified
California State AGbd_93d56742578abcb32023-12-15 · +39dVerified
Maine State AGbd_5af88cb2aa8755e12023-12-27 · +51dVerified
Maine State AGbd_f45e64db77a72ae52023-12-27 · +51dVerified

Showing first 10 of 14 linked disclosures.

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

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

Discovered: Nov 1, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 158 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 6, 2023
Affected individuals: 6state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Vendor notified regulatory bodies as requiredFlagstar reported the matter to law enforcement
Initial access: exploit_public_facing

During the incident: Vendor launched a comprehensive investigation
Vendor notified regulatory bodies as required
Flagstar conducted a forensic investigation and manual document review
Flagstar reported the matter to law enforcement
Flagstar arranged credit monitoring and identity repair services
Vendor remediated all technical vulnerabilities and patched systems
Changes made: Vendor remediated all technical vulnerabilities and patched systems in accordance with the MOVEit software provider’s guidelines
Vendor’s service provider mobilized a technical response team to examine the relevant MOVEit systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 days(5 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 7 states

View merged incident ↗

Massachusetts State AGOct 5 · first

Maine State AGOct 5 · first

Vermont State AGOct 5 · first

Indiana State AG+1d

Oregon State AG+1d

Maine State AG+31d

Massachusetts State AG+31d

New Hampshire State AG+32d · this page

California State AG+71d

Maine State AG+83d

Pattern: first filing Oct 5 (MA), last Dec 27 (ME) — a 83-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 14 — 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://mm.nh.gov/files/uploads/doj/remote-docs/flagstar-bank-20231106.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 6, 2023
Raw hash: 6782ca2539dce640cb0369862651436cbb6add0e80383026dc0a2bcdf7a4b9bc

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityFlagstar Bank, National Association

Victim entityFlagstar Bank, National Association

Incidentdiscovered Nov 1, 2023

Stated responseVendor launched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov