In Keywin 6 IoT you can activate a two-factor login using Google Authenticator, or any of the more common brands. (Apple, Microsoft etc.)
What that does is that once activated, when you log in to Keywin 6, you need to add your sitename, your password, and an auto-generated code from the Google Authenticator in order to identify yourself.
Click the link for a step-by-step manual on how to activate the setting: Two-factor Authentification manual-Keywin 6 IoT