The boy accessed Apple's mainframe from his suburban Melbourne home several times over a year because he was a fan of the U.S. company and dreamed of working there, The Age reports, citing his lawyer.
Apple insists that no customer data was compromised. The Age reports that prosecutors told the court that the Australian Federal Police (AFP) raided the teen's home past year.
The Australian newspaper reported on the hearing, which took place at a children's court in Melbourne on Thursday, and has prompted Apple into issuing a statement reassuring users that their data is safe.
He apparently did this out of love, his lawyer says because he admired the company and "dreamed of" working there.
An AFP raid on the boy's home revealed two laptops with serial numbers matching those of devices which had accessed the system.More news: Turkey is 'target of economic war', Turkish president says
More news: Sergio Ramos mocks Jurgen Klopp's managerial record
More news: Global Stocks Drop Amid Concerns About Turkey
Not only the culprit downloaded secured files but also accessed several customer accounts.
The firm, which earlier this month became the first private-sector company to surpass US$1 trillion in market value, said it wanted "to assure our customers that at no point during this incident was their personal data compromised".
An Apple spokesman said the company's information security personnel "discovered the unauthorized access, contained it, and reported the incident to law enforcement" without commenting further on the specifics of the case.
The report said the boy had boasted about his activities on the mobile messaging service WhatsApp. He pleaded guilty in court and now awaits sentencing... and Apple should probably follow up with a job offer. The teen reportedly did this "because he was such a fan of Apple".
His defence lawyer said that he had become very well-known in the worldwide hacking community.