MS, who is likely collecting data from this feature somehow even if the raw video/images never leave the PC. I imagine law enforcement and three letter agency love it too since now they'll just have to be able to access someone's windows account (MS will help them) to see everything a suspect ever done using their PC. Now they can even just chat with the AI about what it saw. That windows user had better hope it doesn't start hallucinating and invent a story about something that sounds criminal.