San Francisco programmer Stefan Thomas told reporters he lost his hard drive password and feared personal and business information on it might be lost. Following news of the hack, Warren Buffett told CNBC television he had no idea what had happened. “I don’t understand what’s happening. You could imagine that someone broke in and got all your data, but I don’t know what they did with it,” Buffett told the network. Buffett bought the home for $88.8 million in 2006, The Wall Street Journal reported. Berkshire's Westfield Group is the largest commercial landlord in London's West End shopping district, which contains many high-end shopping centers, including the Westfield Stratford City mall. A spokeswoman for Westfield declined to comment to CNNMoney. Buffett’s neighbors in this particular neighborhood include several billionaires and an executive who worked at Yahoo. Buffett has been married to his second wife, Astrid Menks, since 2006. They have two sons, who both live in Omaha, Nebraska. In a video posted on YouTube, Buffett spoke about his love of sailing the