Extended security scrutiny of data access requests in a dispersed storage network

A service device of a dispersed storage network (DSN), the service device comprises:

• an interface;
• memory;
• and
• a processing module operably coupled to the interface and the memory, wherein the processing module is operable to:
• receive, via the interface, a data access request from a requesting device regarding a data segment of a data object, wherein the data access request has passed authentication criteria;
• determine whether to scrutinize validity of at least one of the requesting device and the data access request;
• when determined to scrutinize validity of the at least one of the requesting device and the data access request:
• determine past access tendencies of the requesting device;
• generate a fraud probability score based on the past access tendencies and on information regarding the data access request;
• when the fraud probability score exceeds a threshold:
• request, from another service device of the DSN, a second fraud probability score, wherein the other service device generates the second fraud probability score;
• determine a potential fraud response to the data access request based on the fraud probability score and a response from the other service device;
• and
• implement the potential fraud response in regards to the data access request.