Another Mac app promises to spy on your coworkers.

Someone Was Here is a new macOS utility that uses the built-in webcam to snap photos of anyone using your Mac while you're away. It learns your face during a brief setup and then monitors for intruders, sending notifications with a photo, timestamp, and details about the session to your iPhone via a companion app or other notification services like Telegram or webhooks. The app sits visibly in the menu bar and claims to process all facial recognition locally on the Mac.

For engineers, this represents yet another niche surveillance tool in an already crowded market of macOS utilities, solving a paranoid problem most people didn't know they had. While it might appeal to the overly suspicious or those in shared workspaces, it's essentially a glorified motion detector with facial recognition—another solution looking for a problem in the endless cycle of Mac utility apps. The real takeaway: if you're this worried about who's touching your computer, maybe just lock it properly.