A security hole sat inside the code behind about 70% of the websites you use for 14 years, and nobody found it. Then this summer several different security teams found it within a few weeks of each other, and every one of them was using AI. That second part is why security people are losing sleep this week. Here's how bugs like this normally get handled. A researcher finds a hole, quietly tells the people who maintain the code, and everyone gets time to build a fix before the public hears a…