Network Filtering is a process used to protect computer networks from malicious activity. It involves monitoring all incoming and outgoing traffic, as well as identifying suspicious patterns or activities that could be indicative of an attack. The filtering can be done at the network level, using routers or firewalls, or on individual devices such as computers and smartphones. By blocking known threats and limiting access to certain websites, it helps to keep networks safe and secure. Additionally, it can help prevent malware infections by stopping malicious code from entering the network in the first place. Network Filtering is an important security measure for any organization looking to protect their data and systems from malicious actors.