Automatic forensic investigation techniques to more effectively differentiate false positives from true positives. An incident is automatically investigated by a processor that communicates instructions to a device on a network and analyzes information received from the device in response to the instructions. In response to analyzing, the processor raises or lowers its level of confidence in the incident. If the processor's level of confidence in the incident is sufficiently high, the processor generates an output that indicates that the security of the network has been compromised. Otherwise, the processor ascertains that the incident is a false positive and may modify a criteria for alert generation.
