During her senior year at McCutcheon High School, Tiffany Morris set up a MySpace account to keep in touch with family and friends who don’t live nearby. But unlike some of her peers — and countless others who use the popular social networking Web site — she chose to take extra steps to protect her privacy online. “You need to know my e-mail address before I’ll approve you,” said Morris, 19, now a freshman at Ivy Tech Community College. “I’ve gone through my friends’ MySpace lists and asked, ‘Who’s this person?’ They don’t even know.

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