Guthmann Tax Services
ent_112e79f03057954483e456ea
Disclosures
3
State AG · 3 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
2,826
nationwide · State AG ME
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Guthmann Tax Services
- Normalized
- guthmann tax— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (3)newest first
- Maine State AGas victim2025-10-07
Guthmann Tax Services, Inc. reported an unauthorized access incident occurring June 16-18, 2025, discovered on June 25, 2025. An external actor used valid credentials to access systems, exfiltrate data, and file fraudulent tax returns. Affected data includes names, SSNs, and bank account details for 2,826 individuals. The company engaged forensic investigators, notified the FBI/IRS, and provided 12 months of credit monitoring.
- Montana State AGas victim2025-10-07
Guthmann Tax Services, Inc. notified Montana residents of a data breach where unauthorized parties accessed client systems between June 16-18, 2025, to file fraudulent tax returns. The incident involved access to PII, SSNs, and financial data. The company engaged forensic investigators, notified the IRS, FBI, and Secret Service, and is offering 12 months of identity monitoring services.
- Indiana State AGas victim2025-10-07
Guthmann Tax Services Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2025-06-15 and was reported on 2025-10-07. 9 Indiana residents were affected. 2,826 individuals affected in total.