HackingProfessional ServicesProfessional ServicesData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Hausfeld LLP

bd_2f2e47523ff85f69 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 21, 2025

Filed

Jun 25, 2026

To disclose

16 months

Affected

Not disclosed

Confidence

65%

Full breach record for Hausfeld LLP →

Hausfeld LLP notified the California Attorney General of a data breach where an unauthorized actor accessed computer systems between January 23 and February 20, 2025. The firm became aware of suspicious activity on February 21, 2025. The incident involved the access and/or acquisition of files containing personal information, including names and potentially other identity data. Hausfeld secured its environment, launched an investigation, and is offering complimentary identity monitoring services to affected individuals. No indication of misuse was found.

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Incident timeline

undetected · 29 days

discovery → filing · 16 months / 489 days

Jan 23, 2025

Begins

Feb 21, 2025

Discovered

Jun 25, 2026

Filed

vs. sector median

+51 wks slower

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

Name: Hausfeld LLP
norm: hausfeld

Name: Hausfeld LLP
norm: hausfeld
Industry: Professional Servicesllm

Discovered: Feb 21, 2025
Breach occurred: Jan 23, 2025 – Feb 20, 2025
Undetected for: 29 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notifying requisite state regulatory authorities of this incident

During the incident: Took steps to secure our environment
Launched an investigation to determine the nature and scope of the activity
Completed a detailed and time-intensive review of these files to determine their contents
Providing complimentary identity monitoring services
Providing individuals with free resources and guidance on how to protect their information
Notifying requisite state regulatory authorities of this incident
Changes made: Continuously review our staff training and supervision practices
Continue to evaluate our policies, procedures, and processes related to the storage and access of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 months(489 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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/sb24-625436
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 25, 2026
Raw hash: 924e0d680573a67024e9b29f4b91195e48e7064898152c95e8edcceceb13271b

Reporting entityHausfeld LLP

Victim entityHausfeld LLP

Incidentdiscovered Feb 21, 2025

Stated responseTook steps to secure our environment

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov