BART officials were forced to close four train stations during rush hour on Monday as free speech advocates, organized by Anonymous, attempted to disrupt the evening commute.
WikiLeaks has faced non-stop attacks by government officials. Both internet and financial companies are cutting off services. Here's a round-up of efforts to suppress the site.
Hackers knocked wildly popular micro-blogging site Twitter offline for several hours Thursday with a malicious cyber-attack on its systems, according to the company's founder.