I third(?) this. Security and IT teams are too busy to be monitoring your everyday habits. Sure, they can see your history if they wanted to, but they won’t unless there is an appropriate justification to do so, and it’s usually triggered by an incident or HR. There also stricit rules with doing so because employees still have the right to their own privacy. It’s not like HR can just go over to the security guy and ask them to pull someone’s browsing history.