Chinese anti-censorship group Greatfire.org suffers massive hack

Group that helps Chinese internet users get around censorship barriers to access sites such as Google targeted by denial-of-service attack

An advocacy group that helps internet users inside China bypass blocks on censored content says it is suffering a denial-of-service attack disrupting its operations.

US-subsidised Greatfire.org says the attack started two days ago and traffic is 2,500 times above normal. It has affected "mirror", or duplicate, websites that it has set up via encrypted web services offered by companies such as Amazon.