A security mechanism prohibiting the execution of any program that is not on a pre-approved list of software. The whitelist is often a list of the file name, path, file size and hash value of the approved software. Any code that is not on the list, whether benign or malicious, will not be able to execute on the protected system. (See blacklist.)
Whitelist (Wikipedia)
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Whitelisting (also referred to as allow-listing) is the practice of explicitly allowing some identified entities access to a particular privilege, service, mobility, access or recognition. It is the opposite of blacklisting.
