Blacklisting
Blacklisting: The process used to identify: (i) software programs that are not authorized to execute on an information system; or (ii) prohibited universal…
Definition
The process used to identify: (i) software programs that are not authorized to execute on an information system; or (ii) prohibited universal resource locators (URL)/websites.
Alternative Definitions
- Definition 2
The process of the system invalidating a user ID based on the user’s inappropriate actions. A blacklisted user ID cannot be used to log on to the system, even with the correct authenticator. Blacklisting and lifting of a blacklisting are both security-relevant events. Blacklisting also applies to blocks placed against IP addresses to prevent inappropriate or unauthorized use of Internet resources. (CNSSI-4009) (NISTIR)