What is Commercial Authentication Service?

Commercial Authentication service (CAS) is understood as the ability to provide a level of guarantee to users regarding the use of signals and data from actual Galileo satellites and not from any other source. This capacity will increase the degree of trust on the services based on Galileo positioning and prevent spoofing of Galileo signals, which may lead to committing fraud. The purpose of this service is to satisfy the demand of GNSS users and applications of a trusted navigation solution provided by GNSS systems.