EVANSTON—In what is being called the worst wave of viral attacks in recent years, Northwestern’s Laptop ER service was plunged into frantic technical support overtime as dozens of—mostly male—students brought in their computers after a crippling wave of pornographic entertainment. Although often considered harmless, the sex came with a price: viruses, worms, and predatory infections, often causing their victims to seize up—or stop functioning altogether. “We’ve seen this kind of thing before, but never this bad,” said ER Specialist Derek