The Security Hole in Your AI-Generated Code That Nobody Talks About

Your AI assistant just wrote 400 lines of authentication middleware. It looks clean. It passes lint. Your PR reviewer approved it in 8 minutes because who really reads middleware? Here's what nobody told you: that code has a logic flaw in the token refresh cycle that would let an attacker maintain a session indefinitely if they ever got a single valid refresh token. I know because I spent three weeks finding this exact bug in production after a Qiita post by a Japanese security researcher made...