The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Access control involves the use of several protection mechanisms such as authentication (proving the identity of an actor) authorization (ensuring that a given actor can access a resource), and accountability (tracking of activities that were performed). When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.There are two distinct behaviors that can introduce access control weaknesses: