How do I replace the standard text login screen with the kde login screen?

Login to online accounts

Change your login password

Change the login screen configuration

Authentication is required to change the login screen configuration

Returns the login name of the user owning the current process.

UNODC does not consider that login name password provides significant security.

I said, When people login to their online bank there are lots and lots of things they'd probably quite like to look at.

It is risky to initiate a graphical login without checking beforehand whether it works. If it fails to work, you would be in for a hard time getting back....

Report of Reuters on September 28 Facebook (FB.O) said on Friday that hackers had stolen digital login codes, enabling them to access nearly 50 million user accounts, with unprecedented covers and it had become the most serious security vulnerability in its history.

In kde , this program is called kdm which stands for kde Display Manager. If you are not using kdm as your login screen then you will need to consult the documentation for the software you are using on how to accomplish multiple sessions.