Deloitte Hacked – Brain Cipher Ransomware Group Allegedly Stolen 1 TB of Data

Notorious ransomware group Brain Cipher has claimed to have breached Deloitte UK, allegedly exfiltrating over 1 terabyte of sensitive data from the professional services giant.

Brain Cipher is a ransomware group that emerged in June 2024, quickly gaining notoriety for its cyberattacks on organizations worldwide. Notably, it was responsible for a significant attack on Indonesia’s National Data Center, which disrupted services for over 200 government agencies, including immigration and passport control.

According to statements posted by Brain Cipher, the attack has exposed critical vulnerabilities in Deloitte UK’s cybersecurity infrastructure.