A hacker claiming to be part of the Hellcat Ransomware group has leaked a portion of data purportedly stolen from Telefónica, including internal communications and customer information. Telefónica has not officially acknowledged the breach, while the hacker threatens to release the full 106GB archive if the company does not respond. #Rey #HellcatRansomware
Keypoints
- A hacker known as “Rey” has leaked data allegedly stolen from Telefónica, part of the Hellcat Ransomware group.
- The breach is claimed to have involved exfiltration of over 385,000 files totaling 106GB of sensitive information.
- The hacker used a Jira misconfiguration at Telefónica to access internal data during the May 30 attack.
- Telefónica has not publicly acknowledged the breach despite multiple attempts by BleepingComputer to confirm it.
- The leaked files include emails, invoices, and internal logs from various international locations.