Instagram has confirmed that it has started rolling out the the two-factor authentication feature. The confirmation came after users of the mobile photo-sharing service reportedly spotted the feature in testing.
As you might expect, the feature adds an extra layer of security to your Instagram account by sending an authentication code to the verified phone number associated with the account. The code is required to be entered alongside the regular username/password combo for a successful login.
Use fingerprint reader. Save the trouble.
It will be a hassle to log in everytime as I like to log out everytime after using for security purposes.