Best Practices and Tips
Validate the SSL Certificate of the Mastercard Gateway
It is highly recommended that you validate the SSL certificate of the Mastercard Gateway whenever you connect to the Mastercard Gateway. The Mastercard Gateway SSL certificate is issued by an industry standard Certificate Authority such as Verisign or Thawte whose root certificate should already be available in your web environment.
Please consult a web developer if you are not familiar with validating SSL certificates or exporting certificates from websites. Always ensure the server is a trusted source.