By Tom Simonite It’s not unusual to have user profiles on multiple social networks, or even separate accounts on sites like Twitter–one for work and one for play. But Kyumin Lee at Texas A&M University has 60 Twitter accounts, and not ...

As users have flocked to social networks, so, inevitably, have spammers. And according to a recent experiment, users are much more receptive to spam sent via a social network than over e-mail. Fake friends: This screenshot shows real users who befriended ...

In the world of online fraud, as in real life, the longer miscreants can operate without being caught, the more money they stand to make. And experts have discovered that many phishers–crooks who use fake websites to trick users into giving up valuable ...