MalwareProfessional ServicesProfessional ServicesRansomwareCapture Stored DataData ExfiltratedData PublishedRansom DemandedTargetedHealth (basic)Identity (basic)Government IDPHIPIIHighContained

Kronick Moskovitz Tiedemann & Girard

bd_df01fe534729b870 · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 6, 2024

Filed

May 23, 2025

To disclose

41 weeks

Affected

9,892state residents only

Confidence

71%

Full breach record for Kronick Moskovitz Tiedemann & Girard →5 incidents on file

Supplemental notice for Kronick Moskovitz Tiedemann & Girard regarding a July-August 2024 cyberattack involving malware and data exfiltration. 9,892 Washington residents affected. Data included names, SSNs, DOBs, driver's licenses, and medical info. Actor posted data on dark web; removed by firm. Remediation includes EDR, MFA, and 24-month credit monitoring.

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Washington clock✗ WA AG >90d41 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 18 days

discovery → filing · 41 weeks / 290 days

Jul 19, 2024

Begins

Aug 6, 2024

Discovered

May 23, 2025

Filed

vs. sector median

+23 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed9,892 affectedView incident

A leak claim by rhysida about this victim predates this filing by 290 days.View originating leak claim

Name: Norton Rose Fulbright US LLP
norm: norton rose fulbright us
Domain: nortonrosefulbright.com

Name: Kronick Moskovitz Tiedemann & Girard
norm: kronick moskovitz tiedemann girard
Domain: kmtg.com
Industry: Professional Servicesllm

Discovered: Aug 6, 2024
Breach occurred: Jul 19, 2024 – Aug 6, 2024
Undetected for: 18 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 23, 2025
Affected individuals: 9,892state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PII
Data elements: NameSocial Security numberDriver's licence numberMedical informationDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Washington Attorney General

During the incident: Disconnected systems
Reset all user passwords
Disabled and reset all service accounts
Enhanced MFA requirements
Added Cloudflare protection via a DNS proxy
Deployed additional layers of EDR on all endpoints
Rebuilt systems from backups
Engaged Norton Rose Fulbright to assist with investigation
Engaged leading third-party cybersecurity and forensic experts
Notified law enforcement
Had the information taken down
Retrieved it from the unauthorized actor
Received assurances that all unauthorized copies of the data have been deleted
Changes made: Implemented additional security protocols designed to enhance the security of its network, internal systems, and applications
Offering 24 months of complimentary credit monitoring and fraud protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 41 weeks(290 days from discovery to filing)
Compliance flags: WA AG >90dLeak >180d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA33410.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 23, 2025
Raw hash: 70a58feac32a09efac0821aaa1816318fa6861e4a6247880bfe9aab0d4ba6ba9

Reporting entityNorton Rose Fulbright US LLP

Victim entityKronick Moskovitz Tiedemann & Girard

Incidentdiscovered Aug 6, 2024

Stated responseDisconnected systems

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com