Pierce County Library System
bd_e342cc3aa5512dd5 · schema v1 · pii pii-v1
Full breach record for Pierce County Library System →Pierce County Library System reported a data breach to the Indiana Attorney General. The breach occurred on 2025-04-15 and was reported on 2025-12-09. 10 Indiana residents were affected. 340,101 individuals affected in total.
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Incident timeline
Apr 15, 2025
Begins
Dec 9, 2025
Filed
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Siteinc_ransombd_5b40e5aa1a010f512025-04-21 · +232dVerified by operator
Regulatory filings (4) · sorted by filing gap
- Vermont State AGbd_71aaa1b316b7365c2025-12-09Candidate
- Maine State AGbd_a51f9d15cf7ff4ea2025-12-09Verified
- Massachusetts State AGbd_2c869ac6798413982025-12-10 · +1dVerified by operator
- Washington State AGbd_13778595ed20da502025-06-20 · +172dVerified by operator
Filing propagation · 5 filings · 5 states
View merged incident ↗Pattern: first filing Jun 20 (WA), last Dec 10 (MA) — a 173-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.