HackingFinancial ServicesFinanceSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDCriticalContained

Flagstar Bank, National Association

bd_2d517ec1c38f95f8 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jun 3, 2023

Filed

Oct 5, 2023

To disclose

18 weeks

Affected · nationwide

837,390168 in this filing

Linked

15 filings

Confidence

50%

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

Flagstar Bank, N.A. reported a data breach impacting 168 Maine residents, which was part of a larger incident affecting 837,390 individuals in total. The breach, described as an external system hack, occurred between May 27 and May 31, 2023, and was discovered around June 3, 2023. The compromised information includes names and Social Security numbers. The filing notes that the breach did not occur on Flagstar's own systems, indicating a third-party vendor was involved. Affected individuals were notified on October 6, 2023, and offered two years of credit monitoring, fraud consultation, and identity theft restoration services through Kroll.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jun 3, 2023 → Filed with AG Oct 5, 2023124d ✗ ME AG >90d18 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

undetected · 7 days

discovery → filing · 18 weeks / 124 days

May 27, 2023

Begins

Jun 3, 2023

Discovered

Oct 5, 2023

Filed

vs. sector median

+9 wks slower

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

Massachusetts State AGbd_25176ff42413efea2023-10-05Verified
Vermont State AGbd_48a0d2a33519786f2023-10-05Verified
Indiana State AGbd_25963c4420d351012023-10-06 · +1dVerified
Oregon State AGbd_bebe196ceda9728b2023-10-06 · +1dVerified

Show 6 more filings ↓up to 83d gap

Maine State AGbd_267688291d7bda9f2023-11-05 · +31dVerified
Massachusetts State AGbd_a8b93efc400ce2172023-11-05 · +31dVerified
New Hampshire State AGbd_ba1cee24773c76652023-11-06 · +32dVerified
California State AGbd_93d56742578abcb32023-12-15 · +71dVerified
Maine State AGbd_5af88cb2aa8755e12023-12-27 · +83dVerified
Maine State AGbd_f45e64db77a72ae52023-12-27 · +83dVerified

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: Jun 3, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 6, 2023
Affected individuals: 837,390state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access

Changes made: Offered two years of credit monitoring, fraud consultation, and identity theft restoration services through Kroll.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(124 days from discovery to filing)
Compliance flags: ME AG >90d · 124dME resident >60d · 125d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jun 3, 2023
→ Filed with AG: Oct 5, 2023
124d 90 days ME AG >90d
Maine
Discovered: Jun 3, 2023
→ Notified: Oct 6, 2023
125d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 3, 2023 → Filed with AG: Oct 5, 2023	124d	90 days	ME AG >90d
Maine	Discovered: Jun 3, 2023 → Notified: Oct 6, 2023	125d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 7 states

View merged incident ↗

Massachusetts State AGOct 5 · first

Vermont State AGOct 5 · first

Maine State AGOct 5 · first · this page

Indiana State AG+1d

Oregon State AG+1d

Maine State AG+31d

Massachusetts State AG+31d

New Hampshire State AG+32d

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/a67798f0-9798-4a17-b31f-6c7d003dbfb6.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 5, 2023
Raw hash: 3431d6636b4cf597ed1a8006e572a1a5cfc8f739e277ec1b1f674f47bf8857ee

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityFlagstar Bank, National Association

Victim entityFlagstar Bank, National Association

Incidentdiscovered Jun 3, 2023

Stated responseOffered two years of credit monitoring, fraud consultation, and identity theft restoration services through Kroll.

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov