Lock down computer

[Bheki]

When I log in to my Mac, I can log in with my password, my husband's account has no password assigned to it, so the Internet cannot be accessed. I also have a Guest account which anyone can access. I would like to disable this account in the event that my computer is lost or stolen. Can anyone explain how this is accomplished?
Thank you in advance.

 

[Spink10]

System Preferences - Users & Groups - on the left side panel should see "current users" & "other users". To make changes make sure the lock is unlocked in the lower left part of the preferences screen. Select "guest user" then deselect "Allow guests to log in to this computer". There you go!

 

[Bheki]

System Preferences - Users & Groups - on the left side panel should see "current users" & "other users". To make changes make sure the lock is unlocked in the lower left part of the preferences screen. Select "guest user" then deselect "Allow guests to log in to this computer". There you go!

Done! You're the best; thanks so much!