It's interesting that Apple is policing this. Wouldn't it make more sense for Apple to have some sort of "if you leak you are liable for $X" clause in their contract with the factories, so that the factories themselves have an incentive to prevent this?
Meanwhile, Apple’s suppliers are forbidden from referring to Apple by name or its project code names anywhere in buildings. Suppliers must reimburse Apple for investigations and often must pay penalties when leaks are traced back to them. - article
The article mentions that penalties are possible with smaller suppliers but Foxconn is untouchable as they are vital and Apple would not dare impose penalties against them.
