Extremely secure. In regards to your name or number, members will only ever be able to see your user name unless you give them personal info in messenger.
In regards to the website having your name and email that stays locked up within the website and is only used to send you alerts when you get a new message that is what we use that information for.
In regards to your credit card information the website does not retain that, only the credit card merchant does. Our merchant is owned by visa it is the most popular credit card merchant with the highest security, which is why we chose them.