Summary: Telefonica has confirmed a significant data breach involving the theft of over 236,000 lines of customer data and nearly 470,000 internal Jira tickets. The breach is linked to the Hellcat ransomware group, which utilized infostealer malware to compromise employee credentials.
Threat Actor: Hellcat ransomware group | Hellcat ransomware group
Victim: Telefonica | Telefonica
Key Point :
- Unauthorized access to Telefonica’s internal ticketing system was confirmed.
- Stolen data includes sensitive operational details and employee information.
- The breach poses risks of exposing vulnerabilities within Telefonica’s infrastructure.
- Four threat actors are involved, with three linked to the Hellcat ransomware group.
- Hudson Rock reported that infostealer malware was used to compromise employee credentials.