the White, Santorini
To ensure the highest level of security for online trading, tWS uses the SSL (Secure Sockets Layer) protocol. SSL is a standard security technology through which an encrypted link between a server and a client is established. Millions of people trust the SSL every day for the safe transmission of sensitive data such as credit card numbers, credentials etc.
As a further security measure, when you submit your credit card information you are automatically transferred to the secure transactions portal of Alpha Bank that handles credit card transactions on behalf of tWS.
If you are using a Visa credit card you may be asked to create a Verified by Visa account if you do not already have one. These are steps taken to ensure your payment information are handled securely.