A hardware firewall is a network security device that serves as a barrier between your internal network (such as a local area network or LAN) and external networks (like the internet). Its primary purpose is to protect your network and connected devices from unauthorized access, malicious traffic, and cyber threats. Here's an overview of hardware firewalls. Source - https://www.milesweb.in/blog/website-security/hardware-firewall-an-overview/?utm_source=PdfArticle&utm_campaign=Pdf-dineshk&utm_medium=PdfPromotion-190923