735
Authy got hacked, and 33 million user phone numbers were stolen
(appleinsider.com)
This is a most excellent place for technology news and articles.
2FAS
This. Superior in any way to authy.
This is a new one to me, but a quick look at their homepage doesn't seem to suggest SMS support as per my deal-breaker scenario—could you point me to the docs describing that functionality?