HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Wonder CPA Firm PC

bd_addcb33abc840b77 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 1, 2024

Filed

Dec 12, 2024

To disclose

23 weeks

Affected

4state residents only

Linked

2 filings

Confidence

66%

Full breach record for Wonder CPA Firm PC →

Wonder CPA Firm PC notified Montana residents of a data breach discovered on July 1, 2024. Unauthorized access led to the exfiltration of personal information including names, addresses, dates of birth, and Social Security numbers. Notices were sent on December 12, 2024, offering 12 months of credit monitoring via Cyberscout.

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Incident timeline

discovery → filing · 23 weeks / 164 days

Jul 1, 2024

Discovered

Dec 12, 2024

Filed

vs. sector median

+4 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Maine State AGbd_2a43891c11eddafd2024-12-12Candidate

Name: Wonder CPA Firm PC
norm: wonder cpa firm

Name: Wonder CPA Firm PC
norm: wonder cpa firm
Industry: Professional Servicesllm

Discovered: Jul 1, 2024
Materiality determined: —
Notification sent: Dec 12, 2024
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Implemented incident response protocols
Engaged external computer forensic specialists
Deployed enhanced endpoint monitoring software
Performed global password reset
Implemented additional security controls
Provided access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Provided proactive fraud assistance
Changes made: Deployed enhanced endpoint monitoring software
Performed global password reset
Implemented additional security controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(164 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maine State AGDec 12 · first

Montana State AGDec 12 · first · 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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-57.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 12, 2024
Raw hash: 2409a25f0e038c2508d4c197bad51de6c464c8d888f874d1d0360b16186d4732

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityWonder CPA Firm PC

Victim entityWonder CPA Firm PC

Incidentdiscovered Jul 1, 2024

Stated responseImplemented incident response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov