HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Santander Holdings U.S.A.

bd_cdbe61780213854b · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 10, 2024

Filed

Jun 18, 2024

To disclose

6 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

66%

Full breach record for Santander Holdings U.S.A. →

Santander Holdings U.S.A. notified consumers that an unauthorized party accessed a third-party database between late April and early May 2024, compromising employee personal information including names, SSNs, and bank account details. Santander blocked access and offered two years of credit monitoring via Experian.

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Vermont clock⏱ VT AG >14 bday6 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 · 12 days

discovery → filing · 6 weeks / 39 days

Apr 28, 2024

Begins

May 10, 2024

Discovered

Jun 18, 2024

Filed

vs. sector median

3 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_395d62da97223f3d2024-06-18Verified
Maine State AGbd_404a6d12d74725122024-06-18Candidate
Massachusetts State AGbd_f4d4e89167278c552024-06-18Verified
New Hampshire State AGbd_e1f35afb20d667a22024-07-03 · +15dVerified

Name: Santander Holdings U.S.A.
norm: santander holdings usa

Name: Santander Holdings U.S.A.
norm: santander holdings usa
Industry: Financial Servicesllm

Discovered: May 10, 2024
Breach occurred: Apr 28, 2024 – May 9, 2024
Undetected for: 12 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 18, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Initial access: supply_chain

During the incident: Blocked access to the affected system
Arranged to offer identity protection and credit monitoring services for two years at no cost to you through Experian IdentityWorks
Changes made: Continue to take preventative actions to further safeguard our systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(39 days from discovery to filing)
Compliance flags: VT AG >14 bday
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGJun 18 · first

Maine State AGJun 18 · first

Massachusetts State AGJun 18 · first

Vermont State AGJun 18 · first · this page

New Hampshire State AG+15d

Pattern: first filing Jun 18 (IN), last Jul 3 (NH) — a 15-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ago.vermont.gov/document/2024-06-18-santander-holdings-usa-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 18, 2024
Raw hash: baaebae562de3990d6f23405f943bc497633849d0f033cc84dc545e723c707b3

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entitySantander Holdings U.S.A.

Victim entitySantander Holdings U.S.A.

Incidentdiscovered May 10, 2024

Stated responseBlocked access to the affected system

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov