Skype has denied reports that recent changes to its architecture would make calls and messages easier to monitor by law enforcement agencies, PC World has reported. The web-based voice and video calling service Microsoft acquired last year for $8.5bn, said the changes to its peer-to-peer infrastructure were done to improve the quality of service. Skype has decided that having supernodes, which act as directories that find the right recipient for calls, running on dedicated servers would improve its service and make it more reliable. "This has not changed the underlying nature of Skype's peer-to-peer architecture, in which supernodes simply allow users to find one another. Calls do not pass through supernodes," said Mark Gillett, chief development and operations officer.