HackingStolen CredentialsCapture Stored DataData ExfiltratedTargetedIDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTHEALTH_BASICMediumContained
Walker Accounting & Tax Service
bd_a4e78539cc59060b · schema v1 · pii pii-v1
Full breach record for Walker Accounting & Tax Service →Walker Accounting & Tax Service notified individuals of a security incident discovered on April 3, 2026, involving unauthorized network access and fraudulent tax filings. Impacted data included names, SSNs, financial account info, and medical data. The company disabled the affected software, notified law enforcement and the IRS, and offered 24 months of credit monitoring.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/Consumer%20Letter%20-%20Walker%20Accounting%20%26%20Tax%20Service.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Apr 6, 2026
- Raw hash
- 16ad15cd3b074aae7d9d020b17f1c719046c54567f47f5ed4ca00ad31d709420
Reporting entity
- Name
- Walker Accounting & Tax Servicenorm: walker accounting tax service
Victim entity
- Name
- Walker Accounting & Tax Servicenorm: walker accounting tax service
Incident
- Discovered
- Apr 3, 2026
- Materiality determined
- —
- Notification sent
- May 4, 2026
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTHEALTH_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid AccountsT1119 Automated Collection
- Threat actor
- ExternalFinancial
- Regulator citations
- contacted law enforcementcontacted the relevant US states’ tax authoritiescontacted the cybersecurity division of the Internal Revenue Service (IRS)
- Initial access
- valid_credentials
Compliance
- Time to disclose
- 3 days(3 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.