Westchester Library System

The Westchester Library System is a public library network operating 38 branch locations across Westchester County, New York, providing core library services to the local community. Its offerings include access to physical and digital collections, public computing resources, and internet connectivity, serving as a key information and technology access point for county residents. The system's scale is defined by its substantial public-facing infrastructure, which historically included approximately 500 public computers across its branches before a major incident. This footprint establishes it as a significant regional provider of free educational and digital resources.

The organization's operational profile is notably shaped by its documented experience with sophisticated cybersecurity threats. In March 2022, the system suffered a ransomware attack that encrypted network systems, leading to the precautionary shutdown of all public computers. The incident necessitated a complete wipe and restoration of the 500 affected machines, a process that took up to two weeks. Despite the disruption, existing security measures were credited with preventing any compromise of patron personal data. This event mirrored a previous ransomware attack on the same system, which had also resulted in a temporary public computer shutdown without evidence of data theft. These incidents highlight a recurring challenge and demonstrate the system's established protocols for incident response and data protection, though they also underscore the persistent targeting of public sector IT infrastructure. During restoration periods, the system maintained community service continuity through alternative means such as public Wi-Fi and the deployment of loaner laptops for in-library use or checkout.