Here’s an old piece by Matt Drance on a case from 2010 where an Apple leaker was indicted (and eventually pleaded guilty) for crimes:
The indictment claims Devine received approximately $2.5 million
in kickbacks from these dealings, which he split with a
co-conspirator. That was merely his share of the pot, though: the
effect of his alleged actions on supplier contracts presumably
cost Apple much more — perhaps tens of millions of dollars. A
pending civil suit filed by Apple against Devine may or may not
detail Apple’s estimated financial exposure.