The final registration page on the RSA Conference website is a promotional social media offering, the data collected are anyway sent to the conference server. The page asks for plaintext password, instead implementing the OAUTH authentication mechanism that could preserve users data. If youre planning to attend the next RSA Conference skip the promotional opportunity towards the end of the registration process by sending the user Twitter credentials to an RSA server, in-security by design. The data collected is instead sent to a conference server, instead of a secure authentication mechanism.”]
Source: https://securityaffairs.co/wordpress/43853/digital-id/rsa-conference-twitter-credentials.html