Originally Posted by
MSPeconomist
She was screened, but for all we know she went through PreCheck when she should not have. If so, this is supposedly a security breach, although it's also a security breach for TSA employees to send random people through PreCheck and that's done all the time.
I'm not picking on you in particular as many other posters have made this same mistake but neither of those things are a security breach, they are policy violations.
An example of an actual security breach would be someone on the no fly list getting through security due to having the wrong boarding pass or someone getting into a part of the airport that only ID holders should be allowed.