Using the internet simplifies many processes, but also brings with it a number of dangers. If an unwanted person penetrates the network from outside through malware or phishing, this can have devastating consequences. A physical firewall provides a remedy here. As a continuous shield, it checks all data traffic from outside and inside for unwanted incidents before it is allowed to continue flowing. The physical firewall can protect every PC and server in the network, so while antivirus software and regular updates on individual PCs are still recommended, there is still strong protection if this is not the case. Discover our selection of leading firewall manufacturers such as Lancom and Zyxel now.