HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedData ExfiltratedGovernment IDIdentity (basic)Financial accountMediumContained

Kenneth Wong, CPA, Inc

bd_a6ae8a369609b51b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 4, 2025

Filed

May 23, 2025

To disclose

15 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

65%

Full breach record for Kenneth Wong, CPA, Inc →

Kenneth Wong, CPA, Inc. detected suspicious activity on February 4, 2025, discovering that an unauthorized party accessed systems between February 3 and February 5, 2025. The incident involved client tax information, including names, Social Security numbers, and financial account data. The firm secured its systems, conducted an investigation, implemented additional security measures, and offered credit monitoring to affected individuals.

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Incident timeline

undetected · 1 days

discovery → filing · 15 weeks / 108 days

Feb 3, 2025

Begins

Feb 4, 2025

Discovered

May 23, 2025

Filed

vs. sector median

3 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

Massachusetts State AGbd_0503358adc0ef41a2025-05-23Verified

Name: Kenneth Wong, CPA, Inc
norm: kenneth wong cpa

Name: Kenneth Wong, CPA, Inc
norm: kenneth wong cpa
Industry: Professional Servicesllm

Discovered: Feb 4, 2025
Breach occurred: Feb 3, 2025 – Feb 5, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: May 23, 2025
Affected individuals: Not disclosed
Data types: Government IDIdentity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Took steps to secure our computer systems
Began an investigation into the nature and scope of the activity
Conducted a review of the files on these systems to determine whether they contained any sensitive information
Implemented additional security measures designed to reduce the likelihood of future similar events
Providing complimentary access to credit monitoring and identity restoration services through Experian
Changes made: Implemented additional security measures designed to reduce the likelihood of future similar events
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(108 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 ↗

Massachusetts State AGMay 23 · first

California State AGMay 23 · 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://oag.ca.gov/ecrime/databreach/reports/sb24-603155
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 23, 2025
Raw hash: 496c97acb506e756a8faec04fcf1a0c83ee4a044c9c05fa71ba80dd3ef63399d

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityKenneth Wong, CPA, Inc

Victim entityKenneth Wong, CPA, Inc

Incidentdiscovered Feb 4, 2025

Stated responseTook steps to secure our computer systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov