Akira ransomware group claims data breach against Celeste

• Ransomware group: Akira
• Country: France
• Sector: Technology
• Announcement date: February 6, 2024

Akira ransomware group claims data leak against Celeste

The Akira ransomware group has published an announcement on its leak site claiming to have obtained data from the network of Celeste, a telecommunications company based in France. According to the claim, the group has successfully accessed various files and intends to make the stolen information accessible to the public in the near future. The announcement alleges that the breach involves sensitive operational and client-related information.

Details of the alleged breach

The Akira group claims to have obtained various data from the network of Celeste. The group states that the mentioned data will be made accessible soon. The announcement alleges that the organization's operational files and client information have been compromised. While the group has made these claims, no screenshots were provided in the announcement to substantiate the theft.

The specific types of data mentioned in the claim include:

• Operational files
• Client information
• Personal data

The group has not provided information regarding the total size of the data stolen or the specific number of files involved. Furthermore, no ransom demand has been specified in the public announcement.

About Celeste

Celeste is a telecommunications company based in France. The organization provides high-speed fiber optic network solutions, data center services, and cloud computing infrastructure for businesses.

Impact and security implications

This incident may negatively impact the organization's operational continuity and customer trust. The alleged leak of personal data could trigger data breach notification requirements under GDPR. The disclosure of client lists may increase the risk of identity theft or targeted phishing attacks for the affected individuals. Given the Akira group's double-extortion method, the organization may face a secondary extortion process.

In a double-extortion scenario, threat actors do not merely encrypt an organization's systems to disrupt operations; they also exfiltrate sensitive data to use as leverage. The threat of releasing this data publicly creates additional pressure on the victim to pay the ransom, even if they have backups to restore their systems. This method significantly increases the impact of the attack on the victim's reputation and legal standing.

The group's past activities suggest that the exploitation of VPN vulnerabilities may be a potential vector in this incident. Organizations in the telecommunications and technology sectors often face sophisticated threats due to the critical nature of the infrastructure they manage. To defend against such threats, organizations typically implement multi-factor authentication, maintain rigorous patch management schedules for remote access gateways, and monitor network traffic for unusual exfiltration patterns. Securing the perimeter and protecting internal data movement are essential components of a modern cybersecurity posture.