If you believe that you have discovered a vulnerability in a Betfair product please report it to us through HackerOne - https://hackerone.com/flutteruki.
If you have a security incident to report please get in touch with us through our customer support.
Please include a detailed summary of the issue, including the name of the product (e.g. Exchange, Sportsbook, etc.) and the nature of the issue that you have discovered. Make sure that you include an email address where we can reach you, in case we need more information. Upon receipt of your message, we will reply with a unique tracking number.
We value the security of Betfair services, as well as your privacy, when you report vulnerabilities or incidents to us.