Twitter has added support for multiple security keys on its app, and will soon letting you link more than one security key to use for 2FA.
To protect its users against SIM hackers, Instagram is building a new 2-factor authentication system that doesn't rely on SMS.
All major social networks are concerned about securing their users' data and avoiding intrusions from unwanted "visitors". Facebook, Google, Twitter, LinkedIn have all developed such mechanisms. Buffer, as well, has developed a two-step authentication process, …
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