Any kind of incoming and outgoing data is monitored by a firewall to block the dangerous one and opens the requested port for the safer one.Īs it is one of the key components for the security of your network and device, generally you can find a built-in firewall in every PC or laptop and even in smartphones or many good routers. It is a firmware or software that stays between the online world and your private network and devices to secure them from many threats through the World Wide Web. ![]() ![]() All the unauthorized access to your network or device will get a denial from it and verifies the traffic before permitting them to pass. In simple words, a firewall is a kind of wall that protects your devices and networks from unwanted intruders to provide them security. What happens if I turn off my firewall? What is a Firewall?
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