Every AI Startup Should Watch Out: 1000+ Ghost Accounts Drained Our Platform in 15 Days

We're building Nexu 🦞, an open-source OpenClaw desktop client on GitHub. When new users sign up, they get free credits to try various LLMs on the platform. One day, while cleaning up user data, we noticed something odd — an email domain we'd never seen before had an abnormally high number of registered users. Higher than many corporate domains. Sitting near the top of our domain leaderboard. This article is a complete record of how we went from "that's weird" → multi-dimensional drill-down →...