Thompson & Horton LLP
ent_79535dc3dc32542a
Disclosures
8
State AG · 8 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
148,884
nationwide · State AG TX
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Thompson & Horton LLP
- Normalized
- thompson horton— 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 (8)newest first
- Maine State AGas victim2025-10-30
Thompson & Horton LLP reported a data breach affecting 3 Maine residents. Unauthorized access occurred to a server hosted by MSP 'All Covered' between April 13 and May 3, 2024. The firm discovered the incident on May 3, 2024, and notified individuals on October 29, 2025. Affected data included names. The firm engaged forensic specialists, notified law enforcement, and provided 24 months of credit monitoring.
- Massachusetts State AGas victim2025-10-30
Thompson and Horton LLP reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-10-30. 29 Massachusetts residents were affected.
- Texas State AGas victim2025-10-30
Thompson & Horton LLP based in Houston, Texas, a other entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-05-20 and reported on 2025-10-30. 41,222 Texas residents were affected. 148,884 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Medical Information;Health Insurance Information;Date of Birth. Consumers were notified via Posted at company website or special website;U.S. Mail.
- Nebraska State AGas victim2025-10-29
Thompson & Horton, LLP notified affected individuals of a cybersecurity incident involving unauthorized access to a server hosted by their managed IT services provider, All Covered. The breach occurred between April 13, 2024, and May 3, 2024. The firm engaged forensic specialists, notified law enforcement, and provided 24 months of credit monitoring. The incident involved names of individuals across multiple states.
- Montana State AGas victim2025-10-29
Thompson & Horton, LLP disclosed a cybersecurity incident where unauthorized access occurred to a server hosted by MSP 'All Covered' between April 13 and May 3, 2024. The breach affected approximately 148,884 individuals, exposing names, SSNs, driver's licenses, passport numbers, financial account info, and medical data. The firm engaged forensic specialists, notified law enforcement, and offered 24 months of credit monitoring.
- New Hampshire State AGas victim2025-10-29
Thompson & Horton, LLP notified the New Hampshire Attorney General of a data breach affecting 4 state residents. Unauthorized access to an MSP-hosted server occurred between April 13 and May 3, 2024, discovered on May 3, 2024. Compromised data included names and SSNs. Notices were sent on October 29, 2025, offering credit monitoring.
- Indiana State AGas victim2025-10-29
Thompson & Horton LLP reported a data breach to the Indiana Attorney General. The breach occurred on 2024-04-13 and was reported on 2025-10-29. 32 Indiana residents were affected. 148,884 individuals affected in total.
- Vermont State AGas victim2025-10-29
Thompson & Horton, LLP notified consumers of a data breach affecting its managed IT services provider, All Covered. Unauthorized access occurred between April 13 and May 3, 2024. The incident involved the compromise of client names. The firm engaged forensic specialists, notified law enforcement, and offered 24 months of credit monitoring. No evidence of misuse was found. The notice was filed with the Vermont Attorney General on October 29, 2025.