Which tool helps incident handlers detect misuse of sensitive data by unauthorized users?

The selection of Endpoint Protector as the tool that helps incident handlers detect misuse of sensitive data by unauthorized users is based on its specific functionality. Endpoint Protector is a Data Loss Prevention (DLP) solution that specializes in monitoring and controlling data transfer across endpoints, ensuring that sensitive information is not accessed or misused by unauthorized individuals.

This tool employs various techniques, such as content discovery, data encryption, and access control, to detect unusual activities involving sensitive data, thereby allowing organizations to protect their critical information assets from potential breaches.

In contrast, other tools like FireEye and Symantec Endpoint Security are primarily geared towards broader cybersecurity purposes such as threat detection and endpoint protection, rather than focusing specifically on incident handling related to data misuse. Snort, on the other hand, is an intrusion detection system that monitors network traffic primarily for malicious activities, but does not specialize in evaluating sensitive data usage in the same focused manner as Endpoint Protector.

Thus, Endpoint Protector stands out as the most suitable tool for the specific requirement of detecting the misuse of sensitive data by unauthorized users, aligning perfectly with the tasks of incident handlers.