No, your ISP does not have access to details about your PC hardware.
No, your ISP does not have access to details about your PC hardware.
Hello! Your ISP shouldn't have access to your PC's component serial numbers. There isn't a standard method to prevent them from seeing details like your motherboard, CPU, or RAM. To protect your privacy, consider using a virtual private network (VPN) and avoid sharing sensitive information online.
They usually only learn the MAC address of your Ethernet card, which helps identify the manufacturer—like Intel or Realtek. Most network cards let you change the MAC address through settings in Device Manager, properties, or advanced options. A sticker on the motherboard or packaging may display the MAC, providing a backup method. These MAC addresses are sequential, so if you purchase multiple cards, their numbers will follow a pattern. Law enforcement could easily obtain the MAC from a store where you bought the board and ask previous buyers with similar boards for their MAC addresses to trace yours.
If they manage the modem/router, they can only see your PC's network card. Place another router in front and they won't notice anything else. They probably aren't really interested or concerned. Using unencrypted sites (like http instead of https) lets them collect more information about you.