Attendees walking past the Sony PlayStation booth at the Game Developers Conference in San Francisco in 2012. The PlayStation and Microsoft's Xbox consoles were experiencing a possible hack on their online sites. Paul Sakuma/AP hide caption

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James Franco (left) and Seth Rogen, stars of The Interview, arrive for the film's Los Angeles premiere on Dec. 11. The comedy about a CIA plot to assassinate North Korean leader Kim Jong Un was pulled from theaters after a cyberattack on Sony Pictures, the studio behind the film. The FBI said the attack was traced to the North Korean government. Jim Ruymen/UPI/Landov hide caption

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Sony Pictures Studios headquarters building is seen in Culver City, Calif., on Friday. President Obama has criticized Sony for cancelling distribution of The Interview following after the studio was hacked by North Korea. Damian Dovarganes/AP hide caption

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U.S. intelligence officials believe North Korea was centrally involved in the recent attack on Sony Pictures' computer network — possibly out of retribution for its film The Interview. Above, a security guard stands outside a theater during the film's premiere in Los Angeles last week. Kevork Djansezian/Reuters/Landov hide caption

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Kmart says it has removed malware that had infected its checkout registers in stores. The company believes the malware may have been in place for about a month before it was detected. Rachel Murray/Getty Images hide caption

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Security expert Jose Molina discovered he could control "every device in every room" of a luxury hotel in China. Aarti Shahani/NPR hide caption

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After Grant Hernandez, an undergraduate security researcher at the University of Central Florida, hacked Nest, he programmed it to riff off a favorite line from the movie 2001: A Space Odyssey. Aarti Shahani/NPR hide caption

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Cybersecurity researcher Ruben Santamarta says he has figured out how to hack the satellite communications equipment on passenger jets through their Wi-Fi and in-flight entertainment systems. Andrea Comas/Reuters/Landov hide caption

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Target Co. estimates that at least 70 million individuals may have had information including their "names, mailing addresses, phone numbers or email addresses" stolen in a recent data breach. Joe Raedle/Getty Images hide caption

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The logo and a page of mobile app "Snapchat" are displayed on tablets. Hackers broke into Snapchat, the popular mobile app, accessing the phone numbers and usernames of 4.6 million users and publishing them online. Lionel Bonaventure/AFP/Getty Images hide caption

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