Charles sets up an RDP server on an isolated network segment and places a file on it called passwords.xlsx. He then configures his IPS and DLP systems to monitor for that file exiting the network segment. What type of tool has Charles deployed?

While many honeyfiles use canary tokens, simply monitoring for known files exiting systems that should not be accessed under normal circumstances is also a valid means to construct a honeypot and honeyfile-based detection system. Charles can use the file and the isolated system to detect attackers who attempt to exfiltrate the file. The other answers were made up for this question.