blacklistwhitelist
Blacklist and whitelist are terms used to describe lists that govern access or filtering in information systems. A blacklist contains items that are prohibited or blocked, while a whitelist lists items that are explicitly allowed or trusted. When an entity matches a blacklist entry, access is denied; when it matches a whitelist entry, access is granted. These concepts appear in domains such as email filtering, network security, software deployment, and content moderation.
The terms have historical roots in color symbolism, with black often used to indicate negative or excluded
There is ongoing discussion about terminology due to negative connotations associated with race and oppression. Many
Examples: An email server may block domains on a blacklist and permit those on a whitelist; a