I recently purchased Avast Internet Security. I ran a scan on my home wifi as I have recently had my modem, router, and cable box all updated. I have service with Spectrum. I received a response concerning an open port. I am even more confused with all the various suggestions, wisecracks, and arguments among self-proclaimed tech gurus that I just plain ole got tired of trying to comprehend anything until it dawned on me that I had bookmarked this site because I was impressed, and respected the lack of criticism, and genuine respect towards those of us that are simply layman in some areas needing assistance. That being said, I came to the conclusion that maybe it was an upscale tactic to purchase additional software from Avast, i.e. Avast VPN. I don't have a VPN. Should I be worried about Open port 7547?