What are the possible disadvantages of two factor authentication?

[Fidelia]

Two factor authentication seems to be in vogue now to secure online accounts. And everything is looking like it is all positive as long as two factor authentication is concerned. But I believe it also has disadvantages.

What are the particular disadvantages of two factor authentication?

 

[Trush Jodie]

It takes longer to login to accounts routinely with 2 factor authentication. And some people might feel it is unnecessary friction and too cumbersome.

 

[neku]

It will take more time to login to an account if two factor authentication is used and also it can create a problem if the phone used is malfunctioning.

 

[eLdavis]

Two factor authentication like everything out there also has it's own disadvantages such as slower logins and the risk of loosing your account if the phone is lost or damaged.

 

[kit_hung]

Verily. Two-factor authentication offers a high level of security, but it also has some drawbacks. The login process is somewhat slow, and if you lose your phone or it gets damaged, you could lose access to your account.

 

[King Belieal]

If a user using 2FA authentication doesn't have access to their primary device, they would be locked out of the account completely.