With the aid of software and hardware technologies, network security is fundamentally a collection of rules and settings created to safeguard the accessibility, confidentiality, and integrity of computer networks and data. Network security comes in a variety of forms.
Network access control: Network access control policies are in place for both users and devices at the most granular level to prevent attacks and infiltrations in the network. Access permission to network and confidential data, for example, can be assigned and controlled as appropriate.
Antivirus and antimalware software Malicious software, viruses, worms, ransomware, and trojans are all scanned and protected with antivirus and antimalware software.
Firewall protection Firewalls serve as a line of defense between your trusted internal network and an untrustworthy external network. Administrators can set up a set of established rules for allowing traffic to enter the network.
Virtual private networks (VPNs): VPNs allow you to connect to the network from another location or endpoint. A VPN, for example, is used by a remote employee to access the company’s network. To authorize this communication, the user would have to authenticate. The data sent back and forth between the two sites is encrypted.