Yes, they could call you on Skype.<p>Close to your question:<p><a href="http://arstechnica.com/tech-policy/2013/04/fbi-denied-permission-to-spy-on-hacker-through-his-webcam/" rel="nofollow">http://arstechnica.com/tech-policy/2013/04/fbi-denied-permis...</a><p>Maybe you should worry about these first:<p><a href="http://arstechnica.com/tech-policy/2010/02/school-under-fire-for-spying-on-kid-via-webcam-at-home/" rel="nofollow">http://arstechnica.com/tech-policy/2010/02/school-under-fire...</a><p><a href="http://arstechnica.com/tech-policy/2013/03/rat-breeders-meet-the-men-who-spy-on-women-through-their-webcams/" rel="nofollow">http://arstechnica.com/tech-policy/2013/03/rat-breeders-meet...</a><p>After all, ordinary hackers don't need search warrants.
One reason to keep an eye on your idle/use times. They can probably make the "bandwidth" consumed "disappear", but as far as I know they don't yet have a way to replace the energy consumed.<p>----<p>P.S. Of course, depending upon your system, they might make it falsely report a crappy connection as an explanation for a drop in these values.<p>Down a rabbit hole... ;-)