GLOBALMalwareEducationEducationRansomwareLynxRansom DemandedActor NamedMedium

Chester County Library System, PA

bd_e8349e010beea07a · schema v1 · pii pii-v1

Full breach record for Chester County Library System, PA →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Lynx on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: EducationDiscovered: 2025-10-21

View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

The Chester County Library & District Center was established in 1962 and moved to its current location in 1980. Largely supported by the County of Chester, the library serves as the District Center as well as the Chester County Library System headquarters. Although we serve primarily West Whiteland and Uwchlan Township residents, our expansive and comprehensive collection of nearly 328,000 items helps to support the other 16 member libraries in the system. The Henrietta Hankin Branch Library, also supported by the County of Chester, opened in July of 2003 to serve the northern region of Chester County. Our collection of over 93,600 items serves the residents of Upper Uwchlan and West Vincent Townships as well as several other townships in the area. Both libraries serve as community centers, providing work space, meeting rooms, homework and research help, and a wide variety of educational and cultural programs.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

No regulatory filing corroborates this yet. If an SEC 8-K, state-AG notice, or victim statement lands, DisclosureLens will merge it into an incident and link it here.

Source provenance

Source URL: https://www.ransomware.live/
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 21, 2025
Raw hash: 98c627faff9e2b01e15d851c6b6ae65a459c236c1ecc2f5c0b1f9b583fca4bd4

Reporting entity

Name: lynx

Victim entity

Name: Chester County Library System, PA
norm: chester county library system
Domain: ccls.org
Industry: Educationllm

What this source establishes

Source ceiling: A leak-site claim can't tell us: discovery date · materiality · notification · affected count · confirmed data types · compliance clock. These stay blank until a regulatory filing or victim disclosure lands.
Attack vector: Ransomware· lynx
Threat actor: LynxExternalFinancial

Compliance

Compliance flags: — (clock not assessable for this source)

Extraction provenance

Status: No extraction artifact recorded for this disclosure.