A recent survey found that 75 percent of Dartmouth students have shared their network passwords. "They like having people who know their password," explained Denise Anthony, a sociologist who spoke at the PKI summit conference I attended earlier this month. "They like having someone who can check their e-mail for them or log them in to places where they're supposed to be." The latter scenario echoes a recent New York Times story about cell phone users who form "alibi clubs" — that is, ad-hoc networks of people who "help each other skip work, get out of dates, or give a loved one the slip."
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