If it&#x27;s company equipment they&#x27;re within their rights (usually in the US) to do it.<p>What I&#x27;ve usually seen is that they&#x27;re using something like a Palo Alto&#x2F;Cisco to do transparent&#x2F;inline &quot;blocking of bad stuff&quot; like drive-by downloads, etc. and tracking general Internet usage. They could have also done it with an agent on each computer or whatever.<p>Many times the trigger is some troublesome employee or perhaps a malware outbreak somewhere.<p>In so far as circumventing it, best thing to do is use your own equipment for personal stuff. I have a VPN to my home office and use remote desktop (Windows 10 on both sides or ScreenConnect to my Mac) to keep things separate. No one can see the traffic, it&#x27;s minimal, and legit.