Hillary: I Was Beta Testing Yahoo's Password-less Login Scheme Piggybacking on today's announcement of Yahoo's ""On-Demand"" password-less password system, Hillary Clinton revealed the real reason that she had been using a private email account to conduct government business. ""Now that Yahoo has announced they're doing away with passwords, I'm finally at liberty to set the record straight,"" said Clinton. ""The one and only reason that I have been using a personal email account to conduct matte…