Hacktivists are individuals or groups that use computer networks and hacking techniques to promote a political or social agenda. Unlike other threat actors who may be motivated by financial gain or personal beliefs, hacktivists typically aim to draw attention to social, environmental, or political issues. They often engage in activities such as website defacement, denial-of-service attacks, or the release of confidential information to make a statement or force change related to their cause.

The Bell-LaPadula model is an example of a Mandatory Access Control (MAC) model. It is designed to maintain the confidentiality of information by enforcing access controls based on security classification levels. This model ensures that subjects (users) with a certain clearance level cannot read data at a higher classification level (no read-up) and cannot write data to a lower classification level (no write-down), thus preventing unauthorized access and information flow not permitted by the policy.