In the quiet spaces of everyday life—coffee shops, gyms, waiting rooms—a new kind of uncertainty has taken hold: the possibility that the person across from you is recording, and you would never know. A developer has responded to this unease with an app called Zuckoff, which detects the presence of Meta smart glasses nearby and alerts the user. Its rapid adoption by thousands speaks not merely to a technical solution, but to a deeper cultural reckoning with what it means to move through shared space in an age when surveillance can wear a human face.