The honest answer is unless you physically disable your wifi antenna, you can't really be sure. The same thing with your laptop web camera or anything physical

The honest answer is unless you physically disable your wifi antenna, you can't really be sure. The same thing with your laptop web camera or anything physical on your desktop/laptop/smartphone/etc. If you want to be sure that your laptop camera isn't recording you, you have to put electric tape over it, if you want to make sure your mics on your devices aren't recording you then you have to physically block it. http://www.telegraph.co.uk/technology/2016/09/15/put-tape-over-your-webcam-fbi-director-warns/ http://www.telegraph.co.uk/technology/2016/09/15/put-tape-ov... This is a very complicated issue of reliability of kernel/compilers/hardware/etc. We are dependent on these layers telling us what "reality" is. But how reliable is it? And interesting look into "trust". http://wiki.c2.com/?TheKenThompsonHack http://wiki.c2.com/?TheKenThompsonHack