We are on the white list for Norton so there shouldn't be any cause for this message. Is it possible that your anti-virus is not up to date? If it's updated and you still get this message, can you send a screenshot of the exact message from Norton to support@mysupermarket.com so that we can follow up with them and find out the reason for this alert? We should be able to sort this out quickly and get you up and running with the Companion in no time!