Police in China shut down a cyber attack training website a month before attacks on Google and more than 20 others.
Police in Hubei province shut down Black Hawk Safety Net and arrested three people in November, according to the state-run Xinhua news agency.
The website is thought to have trained thousands of would-be hackers and was offering hacker tools and trojan software to more than 180,000 members, reports said.
The news comes amid growing tension between the US and China following the Google revelations in January of the attacks in December.
China has consistently denied any state sponsorship of cyber attacks and said hacking is not tolerated by authorities.