Substitute Teacher Service
bd_126e3a2896b55268 · schema v1 · pii pii-v1
Full breach record for Substitute Teacher Service →Substitute Teacher Service, Inc. notified employees of a data security event where an unauthorized actor accessed database files containing names, SSNs, driver's license numbers, and financial account details. The incident was discovered on January 9, 2025, following suspicious activity. STS engaged forensic teams and is offering 12 months of credit monitoring.
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Incident timeline
Dec 22, 2024
Begins
Jan 9, 2025
Discovered
Apr 10, 2025
Filed
vs. sector median
5 wks faster
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Sitecicada3301bd_5c5d2147a4a876d82025-02-08 · +61dVerified by operator
Regulatory filings (6) · sorted by filing gap
- Massachusetts State AGbd_1e246deb0cae191f2025-03-14 · +27dVerified by operator
- Maryland State AGbd_111021992bf6f5562025-03-12 · +29dVerified
- Montana State AGbd_30de5097ad118e4d2025-03-12 · +29dCandidate
- New Hampshire State AGbd_96fd64d242721c772025-03-12 · +29dVerified
Show 2 more filings ↓Show fewer ↑up to 38d gap
- Delaware State AGbd_05ca8d0db65cf27c2025-03-03 · +38dVerified by operator
- Indiana State AGbd_5e41e7fee095d80b2025-03-03 · +38dVerified by operator
Filing propagation · 7 filings · 6 states
View merged incident ↗Pattern: first filing Mar 3 (DE), last Apr 10 (DE) — a 38-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.