HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

SITUSAMC HOLDINGS CORPORATION

bd_9fd5d288eb9921f4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 12, 2025

Filed

Apr 3, 2026

To disclose

20 weeks

Affected

Not disclosed

Linked

17 filings

Confidence

64%

Full breach record for SITUSAMC HOLDINGS CORPORATION →

SitusAMC Holdings Corporation notified the California AG of unauthorized access to its IT network. An external actor acquired data between Nov 13-21, 2025, after SitusAMC became aware on Nov 12, 2025. Affected data may include names, addresses, DOBs, SSNs, driver's license numbers, and financial account info. The company engaged third-party experts, notified law enforcement, and is offering 24 months of identity protection via IDX.

J jump to incidentP pin to compareR raw source

California clockDiscovered Nov 12, 2025 → Notified Apr 3, 2026142d ✗ CA 60-day late20 weeks discovery → filing

Incident timeline

Nov 13, 2025

Begins

Apr 3, 2026

Filed

vs. sector median

+12 wks slower

This filing is one of 17 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_e18d1724ef30fa6f2026-04-03Verified
Texas State AGbd_4b06c2519a61551f2026-04-06 · +3dVerified
New Hampshire State AGbd_75b585487f6fa3562026-04-06 · +3dVerified
Oregon State AGbd_0cbe44e43d4d6e6f2026-03-23 · +11dVerified

Show 6 more filings ↓up to 42d gap

Montana State AGbd_28507ebc876b8c8d2026-03-10 · +24dVerified
Indiana State AGbd_70a785f4cf612d8c2026-03-10 · +24dVerified
Indiana State AGbd_8485960cdfce7d6c2026-03-10 · +24dVerified
California State AGbd_c52f9d050e7058e12026-03-10 · +24dVerified
California State AGbd_6a4691fada8d391e2026-02-20 · +42dVerified
Washington State AGbd_7916a021a8a6b3d52026-02-20 · +42dVerified

Showing first 10 of 16 linked disclosures.

Name: SITUSAMC HOLDINGS CORPORATION
norm: situsamc holdings
Domain: situsamc.com

Name: SITUSAMC HOLDINGS CORPORATION
norm: situsamc holdings
Domain: situsamc.com
Industry: Financial Servicesllm

Discovered: Nov 12, 2025
Breach occurred: Nov 13, 2025 – Nov 21, 2025
Materiality determined: —
Notification sent: Apr 3, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unknown
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified certain law enforcement and governmental authorities

During the incident: Commenced an investigation with the assistance of third-party experts
Notified certain law enforcement and governmental authorities
Began taking measures to assess and contain the incident
Took measures to further harden and enhance our security
Changes made: Offering identity theft protection services through IDX, including 24 months of credit and CyberScan monitoring, a $1,000,000 insurance reimbursement policy, and fully managed ID theft recovery services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(142 days from discovery to filing)
Compliance flags: CA 60-day late · 142d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Nov 12, 2025
→ Notified: Apr 3, 2026
142d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Nov 12, 2025 → Notified: Apr 3, 2026	142d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

California State AGFeb 20 · first

Washington State AGFeb 20 · first

Montana State AG+18d

Indiana State AG+18d

California State AG+18d

Oregon State AG+31d

Maine State AG+42d

California State AG+42d · this page

Texas State AG+45d

New Hampshire State AG+45d

Pattern: first filing Feb 20 (CA), last Apr 6 (NH) — a 45-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 16 — 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://oag.ca.gov/ecrime/databreach/reports/sb24-621297
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 3, 2026
Raw hash: 0f67927a846b2b53ee305f7f558ba99df47857eedb0d627881874755ad75bf16

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entitySITUSAMC HOLDINGS CORPORATION

Victim entitySITUSAMC HOLDINGS CORPORATION

Incidentdiscovered Nov 12, 2025

Stated responseCommenced an investigation with the assistance of third-party experts

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov