The threat actor known as IntelBroker has claimed to have breached Cisco systems, exfiltrating 4.5TB of data including source code and other sensitive information. The breach occurred due to an accidental misconfiguration by Cisco, which left its systems open. This incident highlights the risks of misconfigured systems and the potential for sensitive data exposure. The attackers are now offering this data on various cybercrime forums. It’s important for Cisco to investigate this issue and protect their clients as well as their own data.