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How many credentials can an end user have?
End users may have many credentials. Traditionally each online government service, or "agency application," issued its own credential that could only be used at that online government service. Under this approach, people who use many different online government services tend to have many different credentials. One of the problems with having many user IDs and passwords is that people may not be able to remember them all and so they tend to write them down. This increases the risk that an unauthorized person will discover and use those credentials. By enabling end users to reuse credentials they already have rather than creating new credentials every time they try to access a new service, E-Authentication helps reduce the risks, and hassles, associated with having too many credentials.