Warning: Do not attempt to open this envelope. Seriously, just don't.
Use a paperweight or a heavy book to pin it down. Don't let it blow away like a leaf in a tornado.
Keep it in a safe place, like a locked box or a vault. Or, you know, just stick it under your mattress.
Do not, I repeat, DO NOT try to use a magnet to pick up the contents. You might as well try to catch a greased pig in a tornado.
Visit our other security tips pages: Keyboard Security Tips | Password Security Best Practices
Or, if you're feeling particularly paranoid, check out our Paranoid Penalties for attempting to open this envelope.
Don't say we didn't warn you.