This site did not show evidence of storing passwords in plaintext.
This site does allow secured connections (https)
This site did show a clear way to unsubscribe from their emails
This site does verify your email address.
Membership Emails
Below is a sample of the emails you can expect to receive when signed up to The Black Keys.
The next time you visit The Black Keys, you can save time at checkout by logging into your account. This will prefill your address information at the checkout.