I did some testing and found out that: - If I do 24 hours without creating an account, it's done automatically. (http://i.imgur.com/QOJEEgq.png) - If I then create a new account, Google does the verification in 2 steps. (http://i.imgur.com/Dx3KVCj.png) (Always deleting cookies and resetting ip) This test can be done and reproduced as many times as you want. Creating multiple Google accounts is not the point here. I am vigilant about Google being acting like a spy on my device. I ran several tests, all Google can identify me: VirtualBox, OS formatting, Linux, Antidetect, Random Agent Spoofer, CanvasBlocker. (My idea is not to use these programs, but to test Google tracking) In Tor it is not possible to disable the proxy. Google blocks account creation by default. So it is not possible to verify. But... I did an ultimate test: - I stayed 24 hours without creating a Google account. - I entered Tor and tried to create the account. Tor allegedly blocked the Fingerprint Canvas. - Then I usually logged in to Firefox and tried to create an account. And Google has requested verification in 2 steps. (Always deleting cookies and resetting ip) Conclusion: Tor "leaked" the fingerprint to Google. So Google was able to compare the data and block on the second attempt (Firefox). Google, being a large corporation, must have developed some kind of Fingerprint technique. Similar to Canvas Fingerprint, but not identical, so it is not yet being blocked. It is also possible that another factor is being leaked by Tor, but equally dangerous and identifiable. If Google is using this undetectable technique in Google Accounts, they may well be using it in all their other services (Youtube, Search, Translate) and nobody knows. This is scary to me. What good is VPN and Tor services if companies are monitoring us with more sophisticated Fingerprint methods? (I used the translate for this post).