Due to too many unsuccessful attempts, a user can no longer enter into his account. Which Active Directory function is this?

The number of failed login attempts before the user's account is locked can be limited using Active Directory settings or the Local Group Policy Editor. This is crucial to thwart a bruteforce attack, which tries a large number of passwords until it finds the one that works. Antivirus/anti-malware software is crucial and can detect harmful software based on its signature code, but it is not at work here. A rootkit is a type of malware that is exceptionally challenging to get rid of because it operates with administrator rights and is adept at hiding in a system. A physical post used to block vehicular traffic is called a bollard.