A security analyst discovers that unauthorized privileges have been granted to a new account that was created with high$-$level access, which was not authorized by the security

team. Which of the following is the most effective way to prevent the introduction of new accounts with unauthorized privileges in an organization's environment?

Select one:

Use strong passwords and enforce password policies to prevent unauthorized access to user. accounts

Regularly review and audit user accounts to identify and disable any unused or unneeded accounts

Implement a firewall to monitor all incoming and outgoing network traffic to identify suspicious activity

Block access to the organization's network from external sources to prevent attacks and data breaches