This has been sitting with me for a few weeks and I think someone here needs to read it before it happens to them. I was poking around a small SaaS built almost entirely with [Lovable]. Real product, real users. I was clicking through, looking at one record, and I noticed the URL had the record's ID sitting right there in it. Something like /clients/104. Out of pure habit I changed it to 105. It loaded... Someone else's client. Full details. I changed it again. Another stranger. I just kept ...