HackingProfessional ServicesProfessional ServicesSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDFinancialMediumContained

Think Tax Solutions

bd_b5b99e3832fa5eb5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jun 25, 2025

To disclose

—

Affected

Not disclosed

Confidence

66%

Full breach record for Think Tax Solutions →

Think Tax Solutions Inc. notified California residents of a data breach involving a third-party tax filing software platform. In November 2024, an unauthorized individual accessed the platform and downloaded client information, including names, addresses, dates of birth, and Social Security numbers. The company engaged forensic experts and is offering 12 months of credit monitoring to affected individuals.

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Incident timeline

Nov 1, 2024

Begins

Jun 25, 2025

Filed

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

Name: Think Tax Solutions
norm: think tax
Domain: thinktaxsolutions.com

Name: Think Tax Solutions
norm: think tax
Domain: thinktaxsolutions.com
Industry: Professional Servicesllm

Discovered: —
Breach occurred: Nov 1, 2024 – Nov 30, 2024
Materiality determined: —
Notification sent: Jun 25, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Third party: via third-party software platform
Initial access: supply_chain

During the incident: Hired outside forensic experts to investigate the incident
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge for 12 months
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://oag.ca.gov/ecrime/databreach/reports/sb24-604500
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 25, 2025
Raw hash: 554196665657568f8e76b7f8571b0091e0b6d07af0418f60d5e6be24628f3837

Reporting entityThink Tax Solutions

Victim entityThink Tax Solutions

IncidentThird-Party / Supply Chain

Stated responseHired outside forensic experts to investigate the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov