China claimed that Green Dam would help protect children from pornographic and violent content on the internet; Green Dam is content-control software claims to be developed by the Chinese government to prevent explicit content to be viewed by the young audience. On July 2009 it was made mandatory to have Green Dam installed in all the computers sold in china but later it was dropped and only made mandatory for schools, colleges and few public places to have Green Dam installed in them.

Later on June of 2009 Scott Wolchok, Randy Yao, and J. Alex Halderman from the University of Michigan found several security vulnerabilities and flaws in the Green Dam program which allowed malicious sites to steal private data and send spam due to this they asked the users to uninstall the product as it was not safe anymore apart from this security flaws they also found many blacklisted files have also being used in the Green Dam software the files were mainly from the Cybersitter program. So Cybersitter last week filed a 2.2 billion law suite on the Chinese government and jinhui Computer System Engineering for stealing more then five thousand lines of code from Cybersitter

The Chinese Ministry of Industry and Information Technology is yet to comment on the lawsuit.