Yes, Sirvoy is using SSL (Secure Sockets Layer) to ensure that all communication, including the booking process and back-end operations, are secured.
Note: If you are embedding the booking engine on your website and at the same time are using a payment solution, make sure that your website also uses SSL (the URL displays “https://” and not “http://”, or it shows a green padlock). Otherwise, even though the communication with Sirvoy always is secured, the guest might get the impression that payment information is being passed over a nonsecure connection.