From CubicleBot:If you’re a superhero who sucks with computers, you may want to take some precautions to ensure you can destroy your hard drive just in case it happens to fall in the hands of your evil archenemy who’s trying to take over the world. God knows you don’t want him to know how much porn you watch.
One way to do it is to use the appropriate iFixt teardown to locate the exact position of your laptop’s hard drive, and then apply a sticker over the spot made from the pattern found here. Then you can simply drill through it when the time is right. This may also give people peace of mind when they want to dispose of an old computer, but are worried about any personal information remaining on the drive.