UnknownFinancial ServicesFinanceGovernment IDFinancial accountMedium

Alten Sakai & Co. LLP

bd_462abce9ed6cf4ad · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Sep 23, 2025

To disclose

—

Affected

14state residents only

Confidence

95%

Full breach record for Alten Sakai & Co. LLP →3 incidents on file

Alten Sakai & Co, LLP reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-23. 14 Massachusetts residents were affected.

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Massachusetts clock✓ MA credit monitoring due

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Sep 23, 2025

Filed

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed14 affectedView incident

Name: Alten Sakai & Co. LLP
norm: alten sakai

Name: Alten Sakai & Co. LLP
norm: alten sakai
Industry: Financial Servicesregulator portal

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 14state-resident count only
Data types: Government IDFinancial account
Data elements: Social Security numberFinancial account numberDriver's licence number
Stated not affected: Medical informationPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown
Threat actor: External

Compliance flags: MA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

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://www.mass.gov/doc/data-breach-report-2025/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 23, 2025
Raw hash: 3ab620293a7e5924fdeb3fe068f0f7b70e8377f758576bbf52552fcf72cf074c

Reporting entityAlten Sakai & Co. LLP

Victim entityAlten Sakai & Co. LLP

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov