UnknownProfessional ServicesProfessional ServicesCustomer Data InvolvedIdentity (basic)Government IDCredentialsMediumContained

Sher Tremonte

bd_ad2c472c476110de · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 25, 2025

Filed

Sep 17, 2025

To disclose

25 weeks

Affected

Not disclosed

Confidence

64%

Full breach record for Sher Tremonte →3 incidents on file

Sher Tremonte LLP notified the California Attorney General of a data security incident. The breach occurred on March 12, 2025, and was discovered on March 25, 2025, when unusual activity was identified in the firm's email environment. The incident potentially exposed personal information including names, Social Security Numbers, Driver's License or State ID numbers, Passport Numbers, and usernames and passwords. The firm engaged cybersecurity experts, secured its network, and conducted a comprehensive review. Affected individuals are offered 12 months of complimentary credit monitoring and fraud assistance services.

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California clockDiscovered Mar 25, 2025 → Notified Sep 15, 2025174d ✗ CA 60-day late25 weeks discovery → filing

Incident timeline

undetected · 13 days

discovery → filing · 25 weeks / 176 days

Mar 12, 2025

Begins

Mar 25, 2025

Discovered

Sep 17, 2025

Filed

vs. sector median

+8 wks slower

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

Name: Sher Tremonte
norm: sher tremonte
Domain: shertremonte.com

Name: Sher Tremonte
norm: sher tremonte
Domain: shertremonte.com
Industry: Professional Servicesllm

Discovered: Mar 25, 2025
Breach occurred: Mar 12, 2025
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 15, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDCredentials
Data elements: Social Security number
Attack vector: Unknown
MITRE ATT&CK: T1114 Email Collection

During the incident: Took measures to ensure our network was secure
Initiated an investigation to determine the full nature and scope of the event
Engaged cybersecurity experts to assist with this process
Conducted a comprehensive review of all potentially affected information
Performed a thorough review of our systems to investigate the incident and enhance our network security
Implemented additional security measures to protect our digital environment and minimize the likelihood of future incidents
Changes made: Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge for 12 months
Providing proactive fraud assistance through Cyberscout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(176 days from discovery to filing)
Compliance flags: CA 60-day late · 174d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Mar 25, 2025
→ Notified: Sep 15, 2025
174d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Mar 25, 2025 → Notified: Sep 15, 2025	174d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

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/sb24-610196
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 17, 2025
Raw hash: 95f2d4c8cb6805368feb89b2425ad347f32a0879f1034358b3255d42b73f7e7d

Reporting entitySher Tremonte

Victim entitySher Tremonte

Incidentdiscovered Mar 25, 2025

Stated responseTook measures to ensure our network was secure

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov