This spree of hacking began in November of last year and went on till the past August.
Jang also looked to exploit his evil deeds financially.
The authorities have evidence that Jang trying to make purchases with the credit card information he had stolen.
A simple way of doing this is using an SQL injection.
It is a very known trick and can easily be protected against.
But most websites do not care to bother about this basic measure.
source: www.techworm.net