It was learned yesterday from the Rising Global Anti-virus Monitoring Network that, at around 4 p.m. yesterday, the official website of China UnionPay (www.chinaunionpay.com) had been hacked and a backdoor program was implanted into its homepage. Users' computers might be infected when they browse the site. If the infected computer has a web camera installed, hackers can spy on users through this program. By the time the reporter finished this article yesterday evening, the virus on the website had been removed.