HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHighContained

Legacy Professionals, LLP

bd_5793122932909838 · schema v1 · pii pii-v1

Severity

High

Discovered

Apr 1, 2024

Filed

Feb 27, 2025

To disclose

47 weeks

Affected

1,672state residents only

Linked

13 filings

Confidence

66%

Full breach record for Legacy Professionals, LLP →

Legacy Professionals, LLP notified Iowa AG of a data event affecting 1,672 Iowa residents. Suspicious activity was detected in late April 2024; unauthorized access and file exfiltration were confirmed in November 2024. Data included names, SSNs, and financial account info. Notices sent Feb 27, 2025, offering 2 years of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d47 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 47 weeks / 332 days

Apr 1, 2024

Begins

Apr 1, 2024

Discovered

Feb 27, 2025

Filed

vs. sector median

+29 wks slower

This filing is one of 13 about the same incident.View merged incident

A leak claim by lockbit_3 about this victim predates this filing by 300 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Nebraska State AGbd_348f472909d954c82025-02-27Verified
Indiana State AGbd_6a3248ad6530de472025-02-27Verified
HHS OCRbd_182272a7ffb5a97d2025-02-28 · +1dVerified by operator
New Hampshire State AGbd_2b2c9c813c33d3412025-02-28 · +1dVerified

Show 6 more filings ↓up to 71d gap

Maine State AGbd_3e4130a7434eb9ad2025-02-28 · +1dVerified
California State AGbd_668ab37ff5d363e42025-02-28 · +1dVerified
Massachusetts State AGbd_82d3ee4a1c2164892025-02-28 · +1dVerified
Maryland State AGbd_e36cc97a1f40851d2025-02-28 · +1dVerified
Montana State AGbd_f2771bcbb0bec0722025-02-28 · +1dVerified
Washington State AGbd_052763491bdaac522025-05-09 · +71dVerified

Showing first 10 of 12 linked disclosures.

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Legacy Professionals, LLP
norm: legacy professionals
Domain: legacycpas.com
Industry: Professional Servicesllm

Discovered: Apr 1, 2024
Breach occurred: Apr 1, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 27, 2025
Affected individuals: 1,672state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified federal law enforcementProviding written notice to relevant state and federal regulatorsProviding written notice to the three major credit reporting agencies
Initial access: valid_credentials

During the incident: Retained Mullen Coughlin as privacy counsel
Engaged a third-party digital forensic investigation firm
Conducted a time-intensive and thorough programmatic and manual review of the impacted data set
Retained a third-party notification services provider
Provided written notice to one thousand six hundred seventy-two (1,672) Iowa residents
Notified federal law enforcement
Providing access to credit monitoring services for two (2) years through IDX
Changes made: Implemented even more stringent access controls
Working to implement additional safeguards and training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 47 weeks(332 days from discovery to filing)
Compliance flags: Leak >180dIA AG ≤5 bday
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 11 states

View merged incident ↗

Nebraska State AGFeb 27 · first

Indiana State AGFeb 27 · first

Iowa State AGFeb 27 · first · this page

HHS OCR+1d

New Hampshire State AG+1d

Maine State AG+1d

California State AG+1d

Massachusetts State AG+1d

Maryland State AG+1d

Montana State AG+1d

Washington State AG+71d

Pattern: first filing Feb 27 (NE), last May 9 (WA) — a 71-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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://www.iowaattorneygeneral.gov/media/cms/2272025_Legacy_Professionals_LLP_EEAECE9529860.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 27, 2025
Raw hash: 08b2c2ca231752febcec3f0d211e3a4cf5a8c9f11e8533d5202de1429d800d52

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityLegacy Professionals, LLP

Incidentdiscovered Apr 1, 2024

Stated responseRetained Mullen Coughlin as privacy counsel

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancewww.iowaattorneygeneral.gov