UnknownFinancial ServicesFinanceGovernment IDMedium

Arch Capital Services LLC

bd_3b5b8a157105bcd0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 6, 2024

To disclose

—

Affected

120state residents only

Linked

4 filings

Confidence

95%

Full breach record for Arch Capital Services LLC →

Arch Capital Services LLC reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2024-02-06. 120 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

Feb 6, 2024

Filed

—

Corroborated · see linked filings

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

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_c90222998803b42a2024-02-05 · +1dVerified
Vermont State AGbd_3123a62f59c7451e2024-01-25 · +12dCandidate
Indiana State AGbd_a73e419a4c0a813f2024-01-25 · +12dVerified

Name: Arch Capital Services LLC
norm: arch

Name: Arch Capital Services LLC
norm: arch
Industry: Financial Servicesregulator portal

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 120state-resident count only
Data types: Government ID
Data elements: Social Security number
Stated not affected: Medical informationFinancial account numberDriver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

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.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Vermont State AGJan 25 · first

Indiana State AGJan 25 · first

Maine State AG+11d

Massachusetts State AG+12d · this page

Pattern: first filing Jan 25 (VT), last Feb 6 (MA) — a 12-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://www.mass.gov/doc/data-breach-report-2024/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 6, 2024
Raw hash: d2844eed6040d5e9dfd2fa581ff159ca7a286d31e4c40cc0cc02646e3d47fb4e

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityArch Capital Services LLC

Victim entityArch Capital Services LLC

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov