HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedPIIFinancial accountLowContained

Five Star Tax

bd_1825f92b3a24b460 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 15, 2025

Filed

Sep 2, 2025

To disclose

18 days

Affected

1state residents only

Confidence

64%

Full breach record for Five Star Tax →

Five Star Tax Service, Inc. notified Washington residents of a data breach on August 15, 2025, where unauthorized access to client information occurred. The company secured systems, engaged experts, and reported to authorities. No evidence of misuse was found at the time of notice.

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Washington clock✓ WA AG ≤30d18 days 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 · 18 days

Aug 15, 2025

Begins

Aug 15, 2025

Discovered

Sep 2, 2025

Filed

vs. sector median

16 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Five Star Tax
norm: five star tax
Domain: fivestarincometaxservice.com

Name: Five Star Tax
norm: five star tax
Domain: fivestarincometaxservice.com
Industry: Professional Servicesllm

Discovered: Aug 15, 2025
Breach occurred: Aug 15, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 27, 2025
Affected individuals: 1state-resident count only
Data types: PIIFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: reported the incident to the appropriate authorities
Initial access: valid_credentials

During the incident: Secured our system
Engaged cybersecurity experts to investigate
Reported the incident to the appropriate authorities
Changes made: Enhancing our security protocols to prevent this from happening again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 days(18 days from discovery to filing)
Compliance flags: WA AG ≤30d
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.

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/BreachA34538.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2025
Raw hash: 0a264d4d363ca64118153ce45447bde5001c98616f337a95d774da16d398dc60

Reporting entityFive Star Tax

Victim entityFive Star Tax

Incidentdiscovered Aug 15, 2025

Stated responseSecured our system

ComplianceWA AG ≤30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com