Cyber Incident Victim: Celg Geração e Transmissão
Date:
Mar 2021
Location:
Brazil
Summary
A cyber attack targeted Celg Geração e Transmissão, compromising the operation of its corporate network applications and files. The incident prompted the immediate suspension of computerized operations to protect information integrity and safeguard backups, though the full extent of damage and origin of the attack remained unidentified at the time of reporting. The organization's IT team activated security protocols in response to the breach.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 3 motives | 6 techniques |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On March 19, 2021, Celg Geração e Transmissão (Celg GT) disclosed that it had suffered a cyber attack during the preceding night, which compromised access to its entire corporate network of applications and files. The intrusion disrupted normal operations, though the company did not immediately specify the technical nature of the compromise or whether data exfiltration occurred. Celg GT's Information Technology Superintendence initiated response protocols upon detecting the incident, prioritizing containment measures to prevent further unauthorized access. By the morning of March 19, the company had suspended its computerized operational environment—a deliberate isolation tactic aimed at protecting the integrity of stored information and safeguarding backup systems from potential tampering or encryption. This operational shutdown represented a significant disruption to business functions, though the organization did not publicly detail specific affected applications or operational timelines.
The company acknowledged that the full scope of damage remained undetermined at the time of reporting, with investigators unable to confirm the attack's origin or identify the threat actors responsible. Celg GT emphasized adherence to established security protocols throughout its response but provided no further technical details regarding forensic methods or malware analysis. Backup systems were explicitly referenced as a protected asset, suggesting concerns over ransomware or data destruction tactics, though no explicit threat type was confirmed. No customer data breaches or grid operational impacts were mentioned in initial disclosures. The incident remained under active investigation as of the reporting date, with restoration timelines and long-term operational consequences unverified.