Google's top fraud fighter explains why it's risky to brag about owning bitcoin
https://www.cnbc.com/2018/09/13/google-email-fraud-fighter-mark-risher-how-hackers-target-you.html
https://www.cnbc.com/2018/09/13/google-email-fraud-fighter-mark-risher-how-hackers-target-you.html
I see Google are offering USB U2F keys: good. I also see Google are offering an account recovery form if you lose them: bad.
Complete with backdoors for all 3-letter US agencies.