Mark Peterson, a spokesman for Internet provider Wave Broadband, says an unspecified number of Sacramento-area customers were knocked offline by the latest attack. Peterson characterized the Tuesday attack as "coordinated" and said the company was working with Level 3 and Zayo to restore service. It’s possible the vandals were dressed as telecommunications workers to avoid arousing suspicion, say FBI officials. Backup systems help cushion consumers from the worst of the attacks, meaning people may notice slower email or videos not playing, but may not have service completely disrupted. But repairs are costly and penalties are not stiff enough to deter would-be vandals. "There are flags and signs indicating to somebody who wants to do damage: This is where it is folks," says Richard Doherty. "It's a terrible social crime that affects thousands and millions of people."