A magnet killed my hard drive
While rearranging my desk, I put an AC remote on the right side of my Macbook Pro's trackpad while the laptop was open. After 20 seconds, I lifted the laptop to wipe underneath it while the magnet was still there. When I did this, the screen flickered oddly, the computer screen was unresponsive, the keyboard was unresponsive, and it seemingly froze up. I shut down the computer holding the power button, and when I turned it back on, it gave me a prohibitory symbol. My hard drive failed, according to an authorized Apple repair store. It needs to be completely wiped to try and reinstall OSX, or the part needs to be replaced entirely.
HOW CAN A MAGNET DESTROY INFORMATION ON A LAPTOP IN A FEW SECONDS? Is there anywhere in the Apple Macbook Pro 2011 manual that mentioned magnets as being dangerous to hardware function?
MacBook Pro, Mac OS X (10.6.8)