Ever since Windows 11 was announced, Microsoft has maintained that security, alongside the general high quality, is one of the most important aspects of its new OS. Recently, the company also briefed about the various security features and technologies users get on Windows 11 explaining what they bring to the table. One of these new features is Smart App Control which blocks untrusted and unsigned apps that could be potentially malicious. And according to Microsoft, Smart App Control is not just a simple block all unsigned apps feature as it also uses the power of artificial intelligence (AI) to only allow apps that are predicted to be safe:
The firm explains:
Using code signing along with AI, our new Smart App Control only allows processes to run that are predicted to be safe based on either code certificates or an AI model for application trust within the Microsoft cloud.
[..] When a new application is run on Windows 11, its core signing and core features are checked against this model, ensuring only known safe applications are allowed to run.
However, while it does sound impressive, Smart App Control may not be quite smart enough, at least not yet, as it blocked one of the files developed by Microsoft itself.
As you can see, the feature blocked the harmless bootstrapper DLL file inside Windows SDK in this case as it may have been unsigned but the Smart App Control feature couldn't quite connect the dots.