System and method for non-disruptive mitigation of VOIP fraud

A system and method are disclosed herein for providing mitigation of VoIP PBX fraud while having minimal impact on authorized VoIP PBX users. The method includes a system for detecting potential fraud based on multiple and configurable fraud indicators as well as historical data, which can be customized for individual users or groups, which in turn can trigger the other parts of the system to mitigate fraud. The system can terminate in-process calls that are potentially fraudulent and reset the network access credentials for the user accounts or device(s) that have been potentially compromised. The system can use historical data to block further calls from the compromised user accounts or devices to specific locations where the presumed fraudulent calls were directed. In a further aspect, the system and method can automatically reset the network access credentials for authorized users with minimal down time.