Cyber Incident Victim: Honorable Deliberative Council of the City of San Nicolás
Date:
Jun 2021
Location:
Argentina
Summary
The cyberattack on the Honorable Deliberative Council of the City of San Nicolás in Argentina resulted in a data breach. Personal information, including emails and access keys, of over 12,500 registered users was compromised and later dumped on a forum. The attack impacted the council's website and potentially three other Argentinian entities. The motive was likely a combination of ideological expression and personal gain. The incident highlights the vulnerability of government institutions to cyber threats and the potential impact on citizen data privacy and security.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 2 motives | 3 techniques |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
In June 2021, unauthorized actors compromised the Municipality of San Pedro’s web platform (sanpedro.gov.ar), exfiltrating sensitive data belonging to 12,566 registered users. The stolen records included email addresses, platform access credentials, and fiscal information pertaining to taxpayers, residents, and suppliers. Attackers initially attempted to monetize the dataset by offering it for sale on a clearnet forum commonly used for trading illicit data. When no buyers emerged, the actors publicly dumped the entire dataset on the same forum, eliminating any possibility of restricting its dissemination. An anonymous source independently verified the data’s authenticity to La Opinion, confirming its alignment with the municipality’s records. The breach exposed victims to credential reuse attacks, financial fraud, and potential identity theft due to the inclusion of fiscal details.
The public data dump eliminated containment options for the municipality, as the information became freely accessible to malicious actors globally. No details regarding the initial intrusion vector—such as phishing, software vulnerabilities, or insider threats—were disclosed in available reports. Similarly, the municipality’s incident response actions, including potential password resets, system audits, or user notifications, were not documented. The confirmed impacts centered on irreversible data exposure, operational disruption to the online platform, and loss of stakeholder trust. The absence of reported ransomware deployment or system encryption suggests the attack prioritized data theft over service interruption, contrasting with contemporaneous incidents like the SalzburgMilch attack involving system-wide password resets.