I recently signed up for DSL from Qwest, because Comcast keeps dropping the ball, and I just got an email from them stating

Qwest values the privacy of customer account information. Your security code, user name and password help ensure that you are the only one who can access your account information. Please protect this information from unauthorized users and do not share it with anyone.

In that same unencrypted email, they included my security code, user name, and password. Nice work Qwest. Glad to know how much you value my privacy and security.