Microsoft and Symantec say they've taken down a botnet that hit more than eight million computers worldwide.
Google's to start demoting sites in its search results that receive large numbers of valid copyright-infringement notices - delighting the content industry, but worrying free-speech campaigners.
You may notice a dramatic slump in the amount of spam in your inbox over the coming weeks: what's claimed to have been the world's third-largest botnet has been taken down.
Google's released data on the governments aiming to censor internet content, and says it's seen a worrying rise in the number of such requests from Western democracies.
Law enforcement officials on two continents appear to have taken down LulzSec, a hacker group loosely affiliated with Anonymous.
Google is following Twitter's lead in introducing a country-by-country blocking system for its Blogger blogs.
Google's getting more takedown requests than ever, particularly in the US.
Mozilla is resisting an attempt from the Department of Homeland Security (DHS) to force it to remove an add-on called MafiaaFire Redirector.
Cyber activists associated with Anonymous have categorically denied involvement in the downing of Sony's PlayStation Network (PSN).
Unknown cyber activists have managed to temporarily down the nefarious spam-spewing Rustock botnet.
An anti-child pornography exercise saw 84,000 websites shut down over the weekend - rather than the 10 which were actually being targeted.