The security is pretty much theatre. Anyone who isn’t an idiot acting on a whim will be able to get anything (within reason) they want past security and onto a plane.
Take a look at the stats on the number of incidents airport security has actually stopped. You see a whole bunch of “airport security stopped this number of guns/knives/etc” but 99.999999% of them were just people forgetting them in the wrong bag.
Hell, I brought a knife onto a plane at least a half dozen times by accident, only realizing when the knife I lost months before fell out at a hotel.