Cyber Incident Victim: Anglesey Secondary Schools
Date:
Jun 2021
Location:
United Kingdom
Summary
A cyber-attack impacted all five secondary schools on Anglesey, prompting the local council to disable affected systems to contain the incident. The attack potentially compromised personal data, including emails, though no data breach was confirmed. Specialized cyber consultants and the National Cyber Security Centre were engaged to investigate and resolve the issue, with disruptions expected for weeks as systems required restoration. The Information Commissioner's Office was notified as a precautionary measure, and authorities collaborated with partners to support the schools during recovery efforts.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
A cyber-attack targeting all five secondary schools on the island of Anglesey was discovered on Wednesday, June 22, 2021. The incident prompted immediate action by Anglesey Council, which disabled affected systems to contain the spread and minimize further damage. Council Chief Executive Annwen Morgan confirmed the attack began that day and involved unauthorized access to school networks. Specialized cyber-technology consultants were engaged within hours of detection to investigate the breach, with additional support requested from the UK's National Cyber Security Centre (NCSC) to assist in resolving the incident. The compromised systems included email servers, raising concerns that personal data within emails might have been accessed or exfiltrated, though officials emphasized they could not yet confirm a definitive data breach.
The affected schools—Ysgol Syr Thomas Jones in Amlwch, Ysgol Uwchradd Bodedern, Ysgol Gyfun Llangefni, Ysgol David Hughes in Menai Bridge, and Holyhead's Ysgol Uwchradd Caergybi—faced operational disruptions expected to last weeks as critical systems required restoration or remained offline as a precaution. Morgan warned that recovery efforts would involve rebuilding or sanitizing infected infrastructure, delaying a full return to normal operations. As a precautionary measure, the council proactively notified the Information Commissioner’s Office (ICO) due to the potential exposure of sensitive personal data. No ransomware demands or specific attacker motives were disclosed in initial reports. The council coordinated with undisclosed partners to provide logistical and technical support to the schools during the outage, prioritizing continuity of education where possible despite degraded IT capabilities.