Laptops are equipped with all manner of software-based security measures but that doesn’t count for a lot if someone can jab in a USB device eg and boot up your machine (If your BIOS isn’t password protected, for example).
Today’s invention is a simple device to make any such access to physical connections very much more difficult.
The diagram shows a plug placed in eg a USB socket and attached to a strap which passes under the machine and into a clamp fitted to the other side.
The strap can be locked in place, making attachment of any peripherals impossible without doing serious damage to the device or the machine.