The purpose of an application whitelist is to guard against two key threats: Malware Prevention: Malicious software, including keyloggers and ransomware, are prevented from executing if they are not on the whitelist.

Whitelisting (allowlisting) is the process of securing your device or network by allowing trusted (Internet Protocol) addresses, software, or emails to access it. Whitelisting is a two-stage process of: Identifying trustworthy sources and agents; Granting them special recognition, access, and privileges.