High school student hacked into Apple servers, downloaded 90GB of secure files (9to5mac.com)

>> "the boy carried out the attacks ‘because he was such a fan of the company’ and hoped to work there"

How do you like them Apples?!

The headline sort of negates the "secure" adjective.

> Apple’s systems logged the serial numbers of the MacBooks used to carry out the attacks

Does this most likely refer to the hardware IDs use to sign into FaceTime / iMessage?