No, just a coordinated strike on most sites. All arent necessary. Take a few out and the rest cannot handle the traffic. The biggest problem is destruction that allows the insurance companies to deny the claim. Pudding? Cockroaches? Slime? EMP? Ants? False Alarm Fire Extinguishing System (ie sabotage)? AC unit failure? Its not hard to render a server farm inoperable, but if they get insurance money- its all for naught. And everyone, including their lawyers, have a price.