A video supposedly revealing how to open any locked hotel safe is scaring some travelers.

However, you don’t always need a key to open a locked door. When you’re locked out, just remember that a lock is a pretty simple mechanical device designed primarily to keep honest people honest.

Leo Lenier, who is based in Las Vegas, has gone viral after sharing a video showing why the safest place in your hotel room isn't necessarily the safe - showing just how easily it can be reset.