This is a no-win pincer movement for consumer. Withhold phone #, no 2-factor, get hacked. Provide it, get exposed.https://twitter.com/zeynep/status/770364893677621252 …
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My current ideal is a "security key" with a pin; so it can't just be stolen but is also not part of phone. 2.5FA.
Seems even though FB supports TOTP (e.g. Authy/Google Auth) they force you to provide tel# “as a backup”pic.twitter.com/hiZCUxfxg7
https://www.facebook.com/help/270942386330392 … is what i was referring to.
Not too many ways of solid security without providing a phone number in most platforms--I guess besides Google security key?
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