MalwareTechnologyInformationRansomwareStolen CredentialsData EncryptedTargetedIdentity (basic)Government IDMediumContained

Terillium

bd_af8682d60e587a76 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 19, 2025

Filed

Oct 24, 2025

To disclose

14 weeks

Affected

3state residents only

Linked

5 records

Confidence

66%

Full breach record for Terillium →

Terillium notified the New Hampshire AG of a ransomware incident affecting 3 NH residents (current/former employees). Access gained via former employee credentials on July 18, 2025; detected July 19. Data compromised: employee PII including SSNs. Incident contained; no evidence of fraud. Notification sent October 2025.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d14 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 1 days

discovery → filing · 14 weeks / 97 days

Jul 18, 2025

Begins

Jul 19, 2025

Discovered

Oct 24, 2025

Filed

vs. sector median

+3 wks slower

This filing is one of 5 records about the same incident.View merged incident

A leak claim by play about this victim was first seen 81 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteplaybd_3d291380eaf454b52025-07-18 · +98dVerified by operator

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_653cf810dc1efd1e2025-10-24Verified by operator
Montana State AGbd_ddf38a5f78725dc42025-10-24Candidate
Massachusetts State AGbd_f0b8d00a669e81cf2025-11-11 · +18dVerified by operator

Name: Strauss Troy Co., LPA
norm: strauss troy co lpa
Industry: Legal Services

Name: Terillium
norm: terillium
Domain: terillium.com
Industry: Technologyllm

Discovered: Jul 19, 2025
Breach occurred: Jul 18, 2025 – Jul 19, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Oct 27, 2025
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Office
Initial access: valid_credentials

During the incident: Shut down connectivity and isolate impacted systems
Engaged third-party cybersecurity experts to conduct an investigation
Engaged cybersecurity experts to identify files that may have been impacted
Changes made: Continued its investment in and maintenance of its SentinelOne endpoint detection and response
Established a cross-functional security team responsible for continuous monitoring, incident response, and threat intelligence
Collaborated with third-party security experts to conduct regular analysis and assessments
Regularly update and train employees on cybersecurity best practices and the evolving threat landscape
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(97 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGOct 24 · first

Montana State AGOct 24 · first

New Hampshire State AGOct 24 · first · this page

Massachusetts State AG+18d

Pattern: first filing Oct 24 (IN), last Nov 11 (MA) — a 18-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://mm.nh.gov/files/uploads/doj/remote-docs/terillium-20251024.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 24, 2025
Raw hash: 32fe050adfa56f0ff9d345e8805203b2ee0792dd0303846b05b7c6ac31b3af0e

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityStrauss Troy Co., LPA

Victim entityTerillium

Incidentdiscovered Jul 19, 2025

Stated responseShut down connectivity and isolate impacted systems

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov