HackingTechnologyProfessional ServicesInformationCustomer Data InvolvedEmployee Data InvolvedDelayed DiscoveryPIIIdentity (basic)EmploymentLowContained

Quatrro Business Support Services, Inc.

bd_a87028a13fe0fce2 · schema v1 · pii pii-v2

Severity

Low

Discovered

Dec 7, 2025

Filed

Sep 9, 2026

To disclose

39 weeks

Affected

54state residents only

Linked

6 filings

Confidence

68%

Full breach record for Quatrro Business Support Services, Inc. →2 incidents on file

Quatrro Business Support Services, Inc. notified the NH Attorney General of a supplemental breach affecting 54 NH residents. Unauthorized access occurred between Nov 11-19, 2025, and was discovered on Dec 7, 2025. The incident involved personal information of clients' employees and vendors. Quatrro engaged Kroll for identity monitoring and enhanced security measures.

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Incident timeline

undetected · 26 days

discovery → filing · 39 weeks / 276 days

Nov 11, 2025

Begins

Dec 7, 2025

Discovered

Sep 9, 2026

Filed

vs. sector median

+29 wks slower

This filing is one of 6 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Washington State AGbd_046d408e4d7958cf2026-09-09Verified
Oregon State AGbd_b7332845c87554b82026-09-09Verified
California State AGbd_babb49f6339a98ac2026-09-09Verified
Vermont State AGbd_dfeaa72bcad50f962026-09-09Candidate

Show 1 more filing ↓up to 1d gap

South Carolina State AGbd_4bfd9b46b32c693b2026-09-10 · +1dVerified

Name: Quatrro Business Support Services, Inc.
norm: quatrro business support

Name: Quatrro Business Support Services, Inc.
norm: quatrro business support
Industry: TechnologyllmProfessional Servicesllm

Discovered: Dec 7, 2025
Breach occurred: Nov 11, 2025 – Nov 19, 2025
Undetected for: 26 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 9, 2026
Affected individuals: 54state-resident count only
Data types: PIIIdentity (basic)Employment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Provided initial notice to the NH Attorney General on March 23, 2026Sent supplemental incident notification to the NH Attorney General on September 9, 2026

During the incident: Identified and began taking measures to address a security incident
Conducted a thorough investigation
Reviewed files to determine if they contained personal information
Notified clients whose employees’ and vendors’ information was involved
Secured the services of Kroll to provide identity monitoring at no cost
Changes made: Enhanced already existing security measures
Implemented measures to strengthen our security program
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 39 weeks(276 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Washington State AGSep 9 · first

Oregon State AGSep 9 · first

California State AGSep 9 · first

Vermont State AGSep 9 · first

New Hampshire State AGSep 9 · first · this page

South Carolina State AG+1d

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://mm.nh.gov/files/uploads/doj/remote-docs/quatrro-business-support-services-20260909.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 9, 2026
Raw hash: 9f33af6afade6c4d3118ec235444dac377bd490e38912a39fb09c432d1d4f86e

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityQuatrro Business Support Services, Inc.

Victim entityQuatrro Business Support Services, Inc.

Incidentdiscovered Dec 7, 2025

Stated responseIdentified and began taking measures to address a security incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov