Despite admitting that Mangham had not done the crime for financial gain, the judge still gave the harsh sentence whilst declaring: "You accessed the very heart of the system of an international business of massive size, so this was not just fiddling about in the business records of some tiny business of no great importance."
At the time, authorities believed that Facebook was the next company in a long line of industrial espionage. Companies like Microsoft and Google have been hit over the years, as other companies or even governments try to access secrets.
Prosecutors accused Mangham of stealing "invaluable" intellectual property including restricted internal data.
The student claims he did a similar attack on Yahoo and taught them how to improve their security a few years ago.