Steam Desktop Authenticator - this is the name of the first version of programs for confirming exchanges. Perhaps the Steam Desktop Authenticator is the easiest way to verify trades. The program is able to read data from an android smartphone, this requires root rights. You can find detailed information about the product on this site https://steamauthenticator.net/ where there is important information.

Next, you need to select the second option. After that, a window will open in which you need to connect the phone. Connect your smartphone to your computer. If you have multiple accounts, select the one you want to play CS GO with. Once selected, press the confirmation button.

The connection of the smartphone to the PC is completed. Now you need to enter your steam data. The Steam Desktop Authenticator has its own password. It is designed to prevent hackers from breaking into the program. Enter the password twice. This stage was the last.

At its core, the program is in some way a "mobile application", as it has all the functions of the main application, but is less secure in terms of account protection. I do not recommend using it for your main Steam account.