Science says that if he messages you a winky face, it's 80 percent likely that he has a criminal record.
They're making Bitcoin bank by holding your computer hostage.
One website is linked to nearly 100 murders, a new report shows.
Dana McCallum is a Twitter engineer, a gay and trans rights advocate, and proponent of women in tech.
But seven of them are still at large.
He went looking for love in all the wrong places.