Like a lot of people who use social media, Israel Hyman and his wife, Noell, went on Twitter to share real-time details of a recent trip. Their posts said they were "preparing to head out of town," that they had "another 10 hours of driving ahead," and that they "made it to Kansas City."
While on the road, their home in Mesa, Ariz., was burglarized. Hyman has an online video business called IzzyVideo.com, with 2,000 followers on Twitter. He thinks his Twitter updates tipped off the burglars.
"My wife thinks it could be a random thing, but I just have my suspicions," he said. "They didn't take any of our normal consumer electronics." They took his video editing equipment.
Most people wouldn't leave a recording on a home answering machine telling callers they're on vacation for a week, and most people wouldn't let mail or newspapers pile up while they are away. But users of social media think nothing of posting real-time vacation photos on Facebook showing themselves on beaches hundreds of miles from home, or sending out automatic e-mail messages that say, "I'm out of the country for a week."
"I'm amazed at how many people get on there and say they're going on vacation," said Lee Struble, head of security at Monroe Community College in Rochester, N.Y.
Struble, 53, is a member of Facebook with more than 200 friends, many former coworkers who recently reconnected through the site. "Some of these people you haven't seen in 20 or 30 years," said Struble. "But they know where you live or can find out pretty easily, they can do a Google Maps search and can get directions to your house, and you're telling them that you're going to be gone."
Struble is careful about his outgoing e-mail messages. "I just tell people I'm going to be out of the office. I don't say I'm going to be out of town."
Despite the fact that so many people share their vacation plans via the Internet, most Americans don't think private information is secure online. "We actually polled on that question, and the majority of people, teenagers and adults, think that a determined searcher can find them — no matter how careful they are with information," said Lee Rainey, who has studied Internet behavior as director of the Pew Internet and American Life project in Washington, D.C.
New communication technology has always brought with it new risks and rules, usually learned the hard way. When telegrams were a primary means of long-distance communication, correspondents struggled to craft messages that would convey meaning without revealing private business to the operator. Prince Charles showed the world that mobile conversations could be intercepted when his pillow-talk call to Camilla Bowles was made public.
Facebook and Twitter are so relatively new that users might not consider all the risks. For Hyman, Twitter was a way to connect with fans of IzzyVideo.com, where he offers how-to videos on video production. His wife teaches scrapbooking through videos at Paperclipping.com.
"The customers have never met me in person," Hyman said. "Twitter is a way for them to get to know me. You do business with people you know. I'm a real person. I take my kids to the park. I go on vacation. I'm not just some company!"
He added: "I forgot that there's an inherent danger in putting yourself out there."
Despite the potential risks, some social media fans say they have no qualms about sharing their whereabouts.
"I don't worry about it," said David McCauley of Boise, Idaho, a social media consultant who posts a running update of his activities for his Facebook friends. McCauley also communicates constantly on Twitter, where anyone can sign up to read your posts.
"If somebody really wanted to rob me, they could rob me whether they're tweeting about it or not," McCauley said.