Trusteed Plan Services Corporation
ent_99dfe05587e388c09045dc1e
Disclosures
8
State AG · HHS OCR · 7 jurisdictions
Incidents
1
filings grouped by incident
Max affected reported
19,775
as filed · State AG OR
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Trusteed Plan Services Corporation
- Normalized
- trusteed plan— 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
- ⛰️New Hampshire State AGas victim2025-09-22
Trusteed Plans Service Corporation (TPSC) notified the New Hampshire Attorney General of a cybersecurity incident discovered on December 26, 2024. An unauthorized user gained access to TPSC's environment, potentially exposing names, addresses, SSNs, dates of birth, and PHI (medical treatment/diagnosis/procedure info, Medicare/Medicaid numbers) of 2 New Hampshire residents. TPSC engaged forensic investigators, secured systems, and offered 24 months of credit monitoring. No evidence of misuse was found.
- WASHINGTONHHS OCRas victim2025-09-17
Trusteed Plan Services Corporation reported to HHS on 2025-09-17 a Hacking/IT Incident affecting 7977 individuals. Breached information located on Network Server.
- 🦞Maine State AGas victim2025-09-15
Trusteed Plans Services Corporation reported an external system breach (hacking) that occurred and was discovered on December 26, 2024. The breach affected 4 Maine residents. The company offered 12 months of complimentary credit monitoring and identity theft restoration services through HaystackID.
- 🦫Oregon State AGas victim2025-09-15
Trusteed Plans Services Corporation reported a data breach to the Oregon Attorney General. The breach was reported on 2025-09-15. The breach occurred during 12/26/2024 - 12/26/2024. The breach was discovered on 12/26/2024. 19,775 individuals were affected. Notice was sent on 9/15/2025.
- 🦬Montana State AGas victim2025-09-15
Trusteed Plans Service Corporation reported a data breach to the Montana Attorney General. The breach was reported on 2025-09-15. The breach occurred on 12/26/2024. 112 Montana residents were affected.
- 🌲Washington State AGas victim2025-09-15
Trusteed Plans Services Corporation, a health sector entity reported a ransomware incident to the Washington Attorney General. The organization became aware of the incident on 2024-12-26 and filed notice on 2025-09-15. 13,659 Washington residents were affected. 263 days elapsed between awareness and notification. 0 days to identify the breach. 0 days to contain the breach.
- 🏎️Indiana State AGas victim2025-09-15
Trusteed Plans Services Corporation reported a data breach to the Indiana Attorney General. The breach occurred on 2024-12-26 and was reported on 2025-09-15. 272 Indiana residents were affected. 19,775 individuals affected in total.
- 🐻California State AGas victim2025-09-15
Trusteed Plans Service Corporation (TPSC) detected unauthorized access to its computer environment on December 26, 2024. An unauthorized user gained access and obtained personal information, including names, addresses, dates of birth, and Social Security numbers, of plan participants, their children, and deceased individuals. TPSC engaged third-party cybersecurity firms, disconnected network access, and changed credentials. The company is offering 12 months of cyber or credit monitoring services to affected individuals. No evidence of misuse has been found.