Cutting off all services opens the door for a class of DoS attacks. Simply direct enough traffic at a single account's assets, and you'll knock them offline for

Cutting off all services opens the door for a class of DoS attacks. Simply direct enough traffic at a single account's assets, and you'll knock them offline for a given billing cycle. I dont' see this as a real issue (the potential DOS is there, but not a real problem with having a bandwidth metric kill switch). I'd assume this would be a configurable setting and would have to be enabled by choice. In the author's case I'm sure he'd prefer to have is service cut off prior to running up a 1k bill. If one of my test instances started bleeding bandwidth I'd prefer for it to just get killed then to rack up an ungainly bill. If its your production service then don't configure a cutoff.