Instagram has finally announced that it is preparing to add two-factor authentication, as no matter how we do it, the accounts of 400 million users are very attractive to hackers. 
Two-factor authentication is still in testing, and Instagram is reportedly gradually rolling it out to its mobile apps.
The company says its two-factor authentication tool will use a phone number as an additional check if someone tries to log in with your email and password.
By phone, an additional code must be used that is sent by SMS and is different each time.
Many companies offer similar two-factor authentication solutions, including Google, Microsoft Azure, Facebook, Snapchat, and many others.
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