Deloitte Breach: Brain Cipher’s Claims and Implications

In September 2024, the threat actor known as Brain Cipher claimed responsibility for leaking internal communications from Deloitte, a leading global auditing firm. The breach reportedly occurred when an Apache Solr server was inadvertently exposed to the internet with default login credentials, allowing unauthorized access. The compromised data includes email addresses, internal settings, and communications between intranet users. IntelBroker, associated with the BreachForums community, shared proof of access to these sensitive communications on the platform.

Source: Cybersecurity News