HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountEmploymentMediumContained

Mendes & Haney LLP

bd_8cc276bb2bc80240 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 28, 2018

Filed

Mar 29, 2018

To disclose

29 days

Affected

Not disclosed

Linked

2 filings

Confidence

64%

Full breach record for Mendes & Haney LLP →

Mendes & Haney, LLP experienced unauthorized access to its network via Remote Desktop Protocol from a foreign IP address between January 23, 2018, and February 26, 2018. The incident was discovered on February 28, 2018, after a rejected tax return. Affected data included names, SSNs, bank account information, and employment records. The firm engaged forensic investigators, notified law enforcement and regulators, and offered credit monitoring to affected individuals.

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California clockDiscovered Feb 28, 2018 → Notified Mar 30, 201830d ✓ CA 60-day OK29 days discovery → filing

Incident timeline

undetected · 36 days

discovery → filing · 29 days

Jan 23, 2018

Begins

Feb 28, 2018

Discovered

Mar 29, 2018

Filed

vs. sector median

15 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Montana State AGbd_136808e38160eb252018-03-30 · +1dCandidate

Name: Mendes & Haney LLP
norm: mendes haney

Name: Mendes & Haney LLP
norm: mendes haney
Industry: Professional Servicesllm

Discovered: Feb 28, 2018
Breach occurred: Jan 23, 2018 – Feb 26, 2018
Undetected for: 36 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 30, 2018
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountEmployment
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the FBI, the IRS, the FTB, the three credit reporting bureaus, all applicable state agencies, and local law enforcement
Initial access: external_remote_services

During the incident: Hired a specialized forensic IT firm to assist in our investigation
Notified the FBI, the IRS, the FTB, the three credit reporting bureaus, all applicable state agencies, and local law enforcement
Reviewed our office procedures in an attempt to avoid such an incident from occurring again
Offering identity theft protection services through ID Experts
Changes made: Reviewed our office procedures in an attempt to avoid such an incident from occurring again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: CA 60-day OK · 30d
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: Feb 28, 2018
→ Notified: Mar 30, 2018
30d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Feb 28, 2018 → Notified: Mar 30, 2018	30d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

California State AGMar 29 · first · this page

Montana 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://oag.ca.gov/ecrime/databreach/reports/sb24-134895
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 29, 2018
Raw hash: a88fa3c14341ee955cbfafb36ce3f38ebcd9f20d81b2800c48903cbf65c481c0

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMendes & Haney LLP

Victim entityMendes & Haney LLP

Incidentdiscovered Feb 28, 2018

Stated responseHired a specialized forensic IT firm to assist in our investigation

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov