The WikiLeaks website today said that it was under a forceful internet-based attack with the site inaccessible to users in U.S. and Europe.
The site, which just distributed a trove of U.S. diplomatic documents, said in a Twitter message on that it is under a 'distributed denial of service attack,' a method commonly used by hackers to slow down or bring down sites.
WikiLeaks was also under attack on Sunday - but the latest assault - believed to come from China - appears to be more powerful.