Delaware County Says Unauthorized Activity Disrupted Network, Prompting Shutdown

Summary
Delaware County, Pennsylvania, said unauthorized activity disrupted its network beginning June 26. The county shut down network access and is restoring services; it has not said whether ransomware or data theft was involved.
Key points
- The county said unauthorized activity disrupted its network beginning June 26 and that it shut down network access in response to intrusion attempts.
- The disruption affected some county services and offices at the Government Center, including phone connectivity; the sheriff's office reported county servers, phone lines, and facilities were offline.
- The county said it was restoring access, maintaining critical services, and working with cybersecurity specialists to confirm network security.
- The county had earlier described the event as a network outage or provider disruption before saying it involved unauthorized activity.
- The county has not publicly said whether the incident involved ransomware, data theft, or a ransom demand.
Article Details
- Victim Organization
- Delaware County, Pennsylvania
- Incident Type
- Unauthorized activity and intrusion attempts disrupted the county network; whether the attempts resulted in a successful compromise was not disclosed.
- Incident Date
- 2026-06-26
- Disclosure Date
- 2026-07-02
- Operational Impact
- The county shut down network access while responding. The disruption affected county systems and services, including phone connectivity and some Government Center offices; the Sheriff’s Office reported its systems offline and calls unable to go through. Library public-access computers and in-library catalogs were also unavailable, though their connection to the county outage was not confirmed. The county later said internet and phone service had been restored and critical services maintained.
- Ransom Or Extortion
- The county has not publicly said whether the incident involved ransomware, data theft, or a ransom demand.
- Claim Status
- confirmed
