Security is probably one of the most significant concerns for both the shopper and the retailer during an online transaction. In reality, an online transaction is probably more secure than a card transaction in a shop or conducted over the telephone or by fax, as the information transmitted online is strongly encrypted using complicated logarithm combinations.

The Realex payment system uses a combination of both established and innovative techniques to ensure the security and integrity of all sensitive data. Furthermore, our public web servers are certified by Thawte, a public Certificate Authority, ensuring that both the shopper and retailer can have confidence that nobody can impersonate Realex to obtain confidential information.