Thanks for taking the time to reach out to us through our business forums. I am very sorry for the delay in our response. As a Comcast Business Internet customer, you can purchase Norton™ security software in the Comcast Business Cloud Solutions marketplace. Help protect your network against intruders and be assured that your sensitive business information is protected with additional layers of security. More information on how to access this feature can be located through this link https://comca.st/2TZHvPs. If you have any further questions or concerns please don't hesitate to reach out to us at any time through private message with your first and last name, full service address and account number or phone number.