HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedGovernment IDFinancial accountMediumContained

ATLAS CPAs & Advisors

bd_90362de4a47fda11 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 10, 2024

Filed

Mar 25, 2025

To disclose

15 weeks

Affected · nationwide

9821 in this filing

Linked

5 filings

Confidence

66%

Full breach record for ATLAS CPAs & Advisors →2 incidents on file

ATLAS CPAs and Advisors PLLC experienced an external system breach (hacking) on November 15, 2024, discovered on December 10, 2024. Unauthorized access resulted in the exfiltration of Social Security numbers and related financial information affecting 982 individuals. The company engaged forensic experts, notified law enforcement and the IRS, and provided 12 months of credit monitoring via Experian.

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Maine clockDiscovered Dec 10, 2024 → Filed with AG Mar 25, 2025105d ✗ ME AG >90d15 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 · 25 days

discovery → filing · 15 weeks / 105 days

Nov 15, 2024

Begins

Dec 10, 2024

Discovered

Mar 25, 2025

Filed

vs. sector median

+7 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitesilentransomgroupbd_3a07fc9a4cbd4afd2025-01-14 · +69dVerified by operator

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_b87d2fbdbca545632025-03-25Verified by operator
Montana State AGbd_42b033b91464cdce2025-03-24 · +1dVerified by operator
Nebraska State AGbd_73c65a2cac7418ef2025-03-24 · +1dVerified

Name: ATLAS CPAs & Advisors
norm: atlas cpas advisors
Domain: atlascpas.com

Name: ATLAS CPAs & Advisors
norm: atlas cpas advisors
Domain: atlascpas.com
Industry: Financial Servicesllm

Discovered: Dec 10, 2024
Breach occurred: Nov 15, 2024
Undetected for: 25 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 24, 2025
Affected individuals: 982state + nationwide
Data types: Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified IRSConsulted with law enforcement
Initial access: exploit_public_facing

During the incident: Engaged trusted third-party forensics and cybersecurity experts
Consulted with law enforcement
Notified applicable authorities and the IRS
Continued to closely monitor network and information systems
Changes made: Implemented additional administrative and technical safeguards
Continuing to review and improve administrative, technical, and physical safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(105 days from discovery to filing)
Compliance flags: ME AG >90d · 105dME resident >60d · 104dLeak >30d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 10, 2024
→ Filed with AG: Mar 25, 2025
105d 90 days ME AG >90d
Maine
Discovered: Dec 10, 2024
→ Notified: Mar 24, 2025
104d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 10, 2024 → Filed with AG: Mar 25, 2025	105d	90 days	ME AG >90d
Maine	Discovered: Dec 10, 2024 → Notified: Mar 24, 2025	104d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Montana State AGMar 24 · first

Nebraska State AGMar 24 · first

Massachusetts State AG+1d

Maine State AG+1d · this page

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.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/3e7dfc7f-4bd3-4753-8c55-021e6071f09d.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 25, 2025
Raw hash: 70fe810181c91bfb563fc881c8d4316f0b449ee1079f7b9c7d99ec021034d5ec

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityATLAS CPAs & Advisors

Victim entityATLAS CPAs & Advisors

Incidentdiscovered Dec 10, 2024

Stated responseEngaged trusted third-party forensics and cybersecurity experts

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov