Once they're determined to fuck with your stuff, they're no longer random. It's just to delay the occasional dingleberry with a multi tool until they get distracted and forget.

"Huh, doesnt fit. Oh well, guess I'll carve some folk art into the shitter door."

Then you can just spackle over the swastikas, but you don't usually have to reassemble the privacy panels.

Every lock can be broken. My step grandfather would use tamper proof screws to board up his lake house for winter. Otherwise you risk some drunk ice fishing fuck breaking into your house.

If someone really wanted to get in, it doesn't really matter what fasteners you use, they would just cut the wood. It just prevents common vandals that happen to have a screwdriver, not determined criminals.

For some reason, Ford decided to use Security Torx to hold together their hybrid battery packs. Couldn't tell you why that was better then regular Torx.

I'd guess that was some sort of safety standard designed to protect vehicle owners from themselves.

As Torx gets more and more common, it's presence is less and less likely to be a serious hurdle, so the security screws are a simple way for them to sort of say to the owner "don't mess with the stuff below this". If they want to, they still can, but it's a specific effort at that point...so Ford can say they've implemented a safety measure. Might even be some sort of government standard too, where using a less common fastener style brings them into compliance without needing some sort of even less accessible design, like a sealed off system.