I tried using various Single Sign On solutions but somehow their system are not satisfactory. I recently heard about this new company called SmartSignin - https

I tried using various Single Sign On solutions but somehow their system are not satisfactory. I recently heard about this new company called SmartSignin - https://www.smartsignin.com https://www.smartsignin.com and their website says that their patented technology doesn't store your password anywhere so it's impossible to hack it. I don't know how they do it but I'm intrigued. Does anybody else know anything about them?