Cyber Incident Victim: Sistema Nacional de Información Municipal de Chile
Date:
May 2015
Location:
Chile
Summary
Anonymous breached a Chilean government website, leaking login credentials of officials including names, email addresses, password hashes, and telephone numbers in support of student protests against education policies and police brutality. The attack, attributed to the CyberBloc hacker under operations OpChile and OpMarchaestudiantil, also involved defacing the victim's site, rendering it inaccessible with a black page. The hacktivist group cited the fatal shootings of two protesters as motivation for the intrusion, which exposed previously uncompromised data.
| 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 May 17, 2015, the hacktivist collective Anonymous breached Chile’s National Municipal Information System (SINIM) website in an operation supporting nationwide student protests against government education policies and alleged police brutality. The attack, conducted under the campaign names OpChile and OpMarchaestudiantil, involved unauthorized access to the SINIM portal (sinim.gov.cl), resulting in the theft and public release of login credentials belonging to thousands of government officials. A hacker using the Twitter alias CyberBloc claimed responsibility, explicitly linking the breach to demands for justice for Exequiel Borbaran (18) and Diego Guzman (25), two protesters fatally shot during demonstrations. The leaked dataset included full names, email addresses, telephone numbers, and password hashes of officials, which third-party analysis confirmed as previously undisclosed and authentic. Concurrently, attackers defaced the SINIM website, replacing its content with a blank black page; evidence of this defacement was archived on Zone-H under mirror ID 24328856. The operation’s timing coincided with escalating student-led demonstrations criticizing educational reforms and law enforcement responses to civil unrest.
The incident exposed sensitive administrative credentials, potentially compromising the security of municipal systems reliant on SINIM’s infrastructure. Website defacement rendered the portal temporarily inaccessible, disrupting normal operations. CyberBloc framed the attack as retaliation for state violence against protesters, emphasizing the deaths of Borbaran and Guzman as catalysts. The leak’s novelty—confirmed by the absence of prior public exposure—heightened risks of credential misuse against Chilean government entities. No official statements from Chilean authorities regarding containment measures, forensic investigations, or system restoration were detailed in available reports. Anonymous promoted the breach through public communications channels, underscoring their alignment with protest movements while disseminating compromised data and defacement evidence. The incident highlighted tensions between activist networks and state institutions during periods of civil unrest, with digital infrastructure becoming a focal point for political dissent.