Tor 0day: Uniquely Tracking Computers
hackerfactor.com
hackerfactor.com
In my side-by-side test of Chrome vs Tor on the EFF's browser fingerprinting tool, Chrome had a 'unique fingerprint' whereas Tor has a 'nearly unique fingerprint' -- WebGL and Canvas contributed significantly to the bits of identifying information conveyed in both browsers. I suspect my unique monitor and gpu setup could be largely contributing to this fingerprinting process. See https://coveryourtracks.eff.org/
Even if your software is perfectly implemented (it won't be), your hardware is mostly a black box and manufactured by major corporations with track records of cozying up to major governments. All the debate over the security of these algorithms is moot when you can't see the code the underlying machine is running.
You may just about be able to keep a Romanian script kiddy out of of your system if you keep up with every new vulnerability across your entire tech stack, but the Government is getting in whenever they feel like it.
My philosophy is thus to never do or say anything that will make the Government mad at me.
It is sad that pyllyukko's user.js is more hardened than default TBB, but at least it's easy to mitigate for now.