"Our Chinese language official website has been attacked by China-based hackers with some virus and we have asked users not to access the website as a precaution till the virus is identified and the bug is fixed," alleged Lobsang Choedak, press officer of CTA.
"We are consulting experts as hacking of our websites is not new," he said.
Unlike in the past, hackers have not hacked our e-mail accounts this time, but the Chinese language site remained inaccessible, he said.
Choedak said, the website of Tibetan spiritual leader Dalai Lama has not been hacked and functioning normally.
A computer security firm warned early today that our website in Chinese language has been hacked and is infecting visitors' computers with viruses, he added.