Malware has been identified on pro-Tibet websites that could be politically motivated, according to security supplier ScanSafe.
Malware was found on the www.FreeTibet.org website and the problem has now been rectified.
The human rights groups were targeted by a Trojan, according to Spencer Parker, director of product management at ScanSafe.
"ScanSafe threat detection technology found an invisible iFrame which re-directs innocent visitors to a malware-infected site that we have tracked to servers hosted in Taiwan. Given the recent events in Tibet and the protests around the forthcoming Olympics and the Olympic Torch Run, there may be certain groups that are particularly keen to monitor or disrupt activities of pro-Tibet interests."
With the human rights issues in Tibet currently being highlighted in the world's press, cybercriminals see websites such as these as good targets for spreading malware.
"Given the world's attention on relations between China and Tibet ahead of the Olympics, it makes sense that these sites would be targeted as web surfers go online to learn more about Tibet and Tibetan independence. We recommend web surfers take extreme caution and that all websites review their security policies in the light of these latest developments."