network security:
Access Control: Access control is the process of restricting access to resources or data in a network. It involves identifying users and their level of access, and ensuring that only authorized users are granted access.
Authentication: Authentication is the process of verifying the identity of a user or system before allowing access to network resources. Common authentication methods include passwords, biometric authentication, and two-factor authentication.
Encryption: Encryption is the process of converting plain text into a coded form that can only be read by someone who has the decryption key. This is done to protect sensitive information from being intercepted and read by unauthorized parties.
Firewalls: A firewall is a network security system that monitors and controls incoming and outgoing network traffic. It acts as a barrier between an internal network and the internet, and filters out traffic that is not authorized or deemed to be a threat.
In addition to these principles, other important aspects of network security include network monitoring, intrusion detection and prevention, security policies and procedures, and regular updates and patching of software and hardware.
To learn more about network security, you can take online courses, read books or articles, or consult with cybersecurity professionals. It is important to stay up-to-date with the latest security threats and best practices to ensure the safety of your network and data.