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 SSICA.
You have registred your account on ssica.org recently. You need to verify your email id in order to activate your account. Please click here to activate your account or copy paste the below url in your browser http://ssica.org/Activation.aspx?hash=ADE9ACD7-B893-4E09-AFA5-96165F8D4AC5&userid=8830