An Australian teenager who pleaded guilty to hacking Apple Inc. systems was sentenced to eight months probation on Thursday.

The offenses carried out by the now adult defendant, who was 16 at the time the hacking began, were “serious, sustained and sophisticated,” a magistrate told a Children’s Court. The defendant cannot be named under Australian law that protects the identity of juvenile offenders.

Investigators in the case recovered about 1 Terabyte of sensitive information copied from the tech giant’s systems during attacks, a prosecutor told an earlier hearing. The teenager, and a second, younger boy, had “modified and copied a large volume of data that was sensitive both from a privacy and commercial point of view,” and showed a high degree of skill and persistence, the prosecutor said.

Apple said that customers’ personal data wasn’t compromised as a result of the offenses. “In this case, our teams discovered the unauthorized access, contained it, and reported the incident to law enforcement,” the company said last week in an emailed statement.

Source: bloomberg