Probably nothing. The 'Worldwide Loyalty Team' was at best a hyper exaggerated version of reality, at worst a complete fiction used for page views by Gizmodo. Ask anyone who works at Apple...although perhaps they'll just deny it because they're worried about the Worldwide Loyalty Team ;)

Link to the Gizmodo article about the Worldwide Loyalty Team http://gizmodo.com/5427058/apple-gestapo-how-apple-hunts-dow...

Indeed, also, to play devil's advocate:

What if the renegades had been misguided, incompetent programmers who continued to come in to (inadvertently) insert bugs into an ongoing project? One begins to see the point of enforcing physical security policies.

If the rest of your company cooperates with inserting bugs and shit software the way the rest of apple cooperated with these people, physical security is the least of your problems.