Hackernews posts about 2FA

2FA is an additional layer of security that requires users to provide a second form of verification, such as a code sent to their phone or a biometric scan, in addition to their password when logging into an account.

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  1. Setting Up 2FA in Ruby on Rails (blog.lunarlogic.com)
  2. 23andMe Is Just 'Me' Now (www.bloomberg.com)