&gt; I don&#x27;t see how my agreement to their policy should provide them with immunity to what would otherwise be criminal.<p>But it wouldn&#x27;t be.  It&#x27;s <i>their</i> computer.  If I use your computer, you have every right to examine every file I created while using it; you have every right to install a keylogger; it&#x27;s <i>your computer</i> (whether it would be decent to do those things is a different subject).<p>It&#x27;s not private correspondence if you conduct it in public; it&#x27;s not private computing if you do it on someone else&#x27;s computer.  If you want privacy, <i>use your own device</i>.