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 Wyndham Vacation Rentals.
Please click the link below to verify and
activate your account https://www.wyndhamvacationrentals.com/user/activate/87640/1588943697/va5z0OJq5ONcc0qvMr0rMSScNsuR7nKJ-rDJfXg0Hmk