Imperva study finds CAPTCHAs, designed to keep spambots off Web sites, can easily be broken by humans and can turn people away if they are difficult or annoying to complete.
One well-known science site recently turned off reader comments due to trolls and spambots. The host of CNET TV show Rumor Has It, who has dealt with her share of online abuse, ponders the move.
New & Noteworthy: QT Server; Opera; Suitcase Server;
Officials warn of scams in the wake of the disasters in Japan. Here's how to avoid them.
Get schooled by CNET editor Jasmine France. This week she gives tips on how to navigate the personals section of Craigslist.
Twitter has added popular trending topics to our sidebars, which is a good idea in theory -- but we reckon the feature is actually adding noise
Wal-Mart is selling a Toshiba HD DVD player for less than $100. Has this put HD DVD over the top?