Cyber Incident Victim: Richland County Government
Date:
Apr 2016
Location:
United States of America
Summary
Pro-ISIS hacking group Team System Dz compromised multiple Richland County government websites, including the Sheriff's Department and Emergency Management, defacing them with terrorist propaganda and threats. This marked the third such breach within a year, following prior attacks on Veterans Services and the Sheriff's site, as well as previous incidents targeting the University of Toronto and Isle of Wight, Virginia. The attackers displayed Daesh logos and messages supporting an ISIS takeover, impacting various county services before restoration.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actor | Type | Location |
|---|---|---|
| 1 actor | Available to members | Available to members |
Description
On April 15, 2016, multiple Richland County, Wisconsin government websites were compromised by the Algeria-based hacking group Team System Dz, which displayed pro-Islamic State (ISIS) propaganda. The attackers defaced the official Richland County Government website along with nine departmental sites: Sheriff’s Department, Ambulance Service, Veterans Services, Recycling Committee, Health and Human Services, County Fair, Land Conservation Department, Parks Commission, and Emergency Management. Each defaced page featured the official ISIS logo and a threatening message referencing the terrorist group’s agenda. Team System Dz claimed responsibility for the attack, mirroring their previous tactics of deploying political messages during website takeovers. This incident marked the third successful breach of Richland County’s systems within a 12-month period, with prior attacks specifically targeting the Veterans Services and Sheriff’s Department websites using similar defacement methods. The repeated breaches indicated systemic vulnerabilities in the county’s web infrastructure.
The defacements disrupted public access to critical county services until administrators restored all affected websites by the article’s publication date. No data theft or secondary malware deployment was reported, with the attack’s impact limited to reputational damage and temporary service unavailability. Team System Dz had a documented history of politically motivated website compromises, including prior attacks against the University of Toronto and Isle of Wight, Virginia government systems in 2015. Richland County officials did not disclose remediation steps taken after the incident, though the restoration timeline suggested reactive rather than preventive measures. The recurrence of breaches targeting the same county entities underscored persistent security weaknesses, though no further technical details about attack vectors or county responses were publicly confirmed. Zone-h archives preserved evidence of the defacements as a public record of the intrusions.