An administrator discovers that a user is accessing a newly established website that may be detrimental to company security. What action should the administrator take first in terms of the security policy?
- Ask the user to stop immediately and inform the user that this constitutes grounds for dismissal.
- Revise the AUP immediately and get all users to sign the updated AUP.
- Create a firewall rule blocking the respective website.
- Immediately suspend the network privileges of the user.