Still, there are some that users may install. The selection of authenticator apps for desktop operating systems is limited when compared to the abundance of authenticator apps for mobile devices.
Assuming that a computer is used, as two-factor authentication without a mobile device and computer would make little sense, the following two options are available:
There are two main options when it comes to using two-factor authentication without mobile devices. Regulations may require 'more secure' methods.The smartphone is not available, e.g., it has been misplaced or was stolen.While most Internet users do have access to a smartphone for that, there are situations where using a phone may not be an option. There is the option to receive text messages with the code or authenticator apps, which users need to install and set up on their mobile devices. Several of the most popular two-factor authentication methods require a mobile device. Users receive or generate a code, which they enter on the site or in the app. Two-factor authentication adds a second security layer to the sign-in process. It will be replaced with passkeys eventually, but this is not going to happen overnight.
Two-factor authentication is a powerful security feature that improves the security of online accounts significantly when set up.