Up to 8,900 suspects involved in everything from net fraud to online pornography were arrested by the Chinese police in a series of raids that not only saw the arrest of the indivuals but also removed 188 million articles and comments from websites and chat forums that police deemed to be harmful.
A fake PR operation that threatened to post bad reviews of products and services unless it was paid to keep quiet was also shut down in the process.
Police said that hackers who stole online identities, cyber-thieves who targeted banks as well as virus writers were all grabbed during the raids. This operation was carried out by the Chinese govenment in an effort to purify the network environment.
ref:bbc