They needed to pay extra fees if they wanted to rebook.
This is how the hacker made his money, by offering a re-booking link that pocketed him re-booking fees.
It took the airline three weeks to notice the data breach.
The airline lost more than 80,000 yuan ($12,365 USD) from people demanding a refund.
The suspect coded the hacking software himself, a police officer said.
source: www.techworm.net