HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Flagstar Bank, National Association

bd_4545877732810965 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 6, 2023

To disclose

—

Affected

Not disclosed

Confidence

66%

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

Flagstar Bank notified South Carolina and Rhode Island residents of a third-party data breach involving vendor Fiserv. Unauthorized actors exploited a vulnerability in MOVEit Transfer software between May 27-31, 2023, to access customer personal information including names and government IDs. Fiserv remediated vulnerabilities and Flagstar provided two years of identity monitoring.

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Incident timeline

May 27, 2023

Begins

Oct 6, 2023

Filed

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

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

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

Discovered: —
Breach occurred: May 27, 2023 – May 31, 2023
Materiality determined: —
Notification sent: Jun 20, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified regulatory bodies as required
Initial access: supply_chain

During the incident: Vendor launched a comprehensive investigation
Identified individuals affected
Notified regulatory bodies
Remediated all technical vulnerabilities and patched systems
Mobilized a technical response team to examine relevant MOVEit systems
Arranged for complimentary free identity monitoring service through Kroll for two years
Changes made: Remediated all technical vulnerabilities and patched systems in accordance with the MOVEit software provider’s guidelines
Mobilized a technical response team to examine the relevant MOVEit systems and ensure that there were no further vulnerabilities
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/FlagstarBank.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 6, 2023
Raw hash: 43df751b7d22919f24f67098cb051cb63d16d9de781fd09917d5cd5adca9807b

Reporting entityFlagstar Bank, National Association

Victim entityFlagstar Bank, National Association

IncidentThird-Party / Supply Chain

Stated responseVendor launched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov