I can't find the piece of news now... But, there was a hacker who discovered
that the record of every key pressed in Android-running devices' virtual
keyboards was sent to somewhere, through a functionality that people were not
aware of. (Which is - to me, at least - an absolute no surprise, since it's a
partially proprietary OS, developed by Google/NSA/CIA. -
http://www.prisonplanet.com/group-calls-for-hearings-into-google%E2%80%99s-ties-to-cia-and-nsa.html)
All that it takes to compromise the security of a device is a single
closed-source program. And, from what I know, Android has several. (So, it,
obviously, can't be trusted.)
Cell phones - and, even worse, smart phones - are the antithesis of privacy.
And, unless you really need one, I advise you to get rid of it. (Or to, at
least, keep it with the battery off of it, and only use it when you /really/
need it.) Even if it's only for health reasons. -
https://trisquel.info/en/forum/ot-mobile-telephony-survey#comment-44632
As for Tor... How many times do I have to say to people, in here, that it's a
network known not to be secure?...
(https://trisquel.info/en/forum/how-use-tor-trisquel#comment-26792)