Moltbook has gone viral because it showcases something that until recently seemed like science fiction: artificial intelligence agents conversing with each other. Today, running an Agent is relatively easy, even without technical knowledge, and you don't need a Mac Mini or any special hardware. My point isn't the "wow factor," but the risk. Having an agent running on your device changes the equation: it can request permissions, access files, or handle credentials without you fully understanding what it's doing. The benefit is usually experimenting or "seeing what happens," but the potential cost includes real security, privacy, and control issues. The key question isn't whether Moltbook is interesting—it is—but whether the risk/benefit ratio is truly in your favor. An agent doesn't just think: it acts. And when something acts on your system, the attack surface increases.