Popup Window: Stay signed in to all your apps

This is already known. I already mentioned the registry key in my initial post. See second link where this register key is mentioned.

The goal of this post was to prevent other systems who are not part of an organization or enterprise. For example, home computers, shared computers, or even worse public computers where you don’t have control of as an organization/enterprise.

I still see this “popup” as a potential security risk, because when people login to check their account temporarily on a system which is not their own personal system, then know the potential risks.

I will describe a scenario. User logs in on a friend’s computer system with Teams. User ignores the popup and press ok. User log offs. The owner of that system opens Teams and still see that his friend previous has logged in. When he would click on this account, he would be able to login without any password asked. This is an example of many ways it can occur.

Even though the user reads the popup, it is so unclear what is mentioned there that people would still press ok without understanding it. IT person would understand it, but a normal user often doesn’t.

This popup should not default join your account to the computer. The default should be an extra check box with an option to join and not the other way around.

Hope this helps the understanding of the security risk that exist with this very annoying popup.