Because many of the people on this list run Linux, I mention the following article: http://www.theregister.co.uk/2016/08/10/linux_tor_users_open_corrupted_comm… "Linux security backfires: Flaw lets hackers inject malware into downloads, disrupt Tor users, etc" If you're running Linux kernel 3.6 or later and your system is exposed to the internet, this is something you should consider taking care of. - Brian