dots vs Muse vs Grok Bot: Change These Settings First

Late last month, a security researcher found a flaw that could have let an attacker into someone else's Muse agent: not a chat window, the agent's own computer in Meta's cloud, holding that person's emails and files. OpenAI's dots, Meta's Muse and xAI's Grok Bot all work like that: a computer of their own, signed in as you. Here is what each one can do, the brakes each company built, the settings to change first and how, and what each company keeps.