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Rupert Murdoch tweets that the Wall Street Journal newspaper is still being attacked by Chinese hackers.

A child watching videos on YouTube is an average of three clicks away from potentially disturbing adult content, according to a recent study released by British digital security firm Kaspersky Lab.

The answer to the trivia question will be: "Monkey Drums (Goskel Vancin Remix) by Chase Buch." That's the 25 billionth song purchased on iTunes....

Many of us know Facebook users who are on the site seemingly 24/7, but we also know others who sometimes feel Facebook fatigue, and who have stepped away from the social network to clear their heads. Now a new study says that 61 percent of Facebook users say they've taken such breaks for several weeks or longer in the past.

Zynga reports a sharp drop in its losses in the last three months of 2012, as revenues at the designer of games including Farmville stabilised.

The China-based search engine Baidu this afternoon reported Q4 results that were a smidgen ahead of the Street consensus estimates.

The clear favorite was Budweiser's "Brotherhood" spot, which told the story of a horse trainer reunited with a Clydesdale he had raised as a foal. Overall, there were 26,131,270 tweets about Super Bowl ads.

Duolingo taps into crowdsourcing to teach a language and translate the Web... His free Duolingo app and website invite users to learn one of six languages for free. The gamelike interface is ad-free and encourages users to compete with friends. But here's the thing: After about 45 minutes of instruction, the program begins asking users to translate random sentences into their new language. Von Ahn plans to sell the sentences to sites that want their material translated on the Web. He expects that half of the service to be up and running later this year.

Twitter said it had detected "sophisticated" unauthorized attempts to access information from the short-messaging service used by more than 200 million people.

Mac computers have stopped running programs written using the Java programming language in their browsers, as Apple blocked it because of security problems.