That one wasn't me.

Keys are at least well enough secured from memory scans, etc, but there are a lot of glitches on the map, and no protections from things like noclip hacks, multiple types of speedhack and, as someone decided to demonstrate, the infamous roblox lua "bytecode" injection.

Anyone can read a few forum posts and learn how to do all of these.  The "blow up the blocks" one liner demonstrated already is easily found on a major wiki site via Google.