Network security is a crucial component of cyber security that deals with securing the networks and systems that make up an organization’s IT infrastructure. Network security involves a set of technologies, policies, and practices that protect networks, devices, and data from unauthorized access, modification, or destruction.
Some of the key elements of network security include:
Firewall:
A firewall is a security device that controls and monitors the traffic between a network and the internet, ensuring that only authorized traffic is allowed to pass through.
Intrusion Detection and Prevention System (IDPS):
An IDPS is a software or hardware system that monitors network traffic for signs of unauthorized access, malicious activity, or other security threats.
Virtual Private Network (VPN):
A VPN is a secure connection that allows remote workers to access the organization’s network securely over the internet.
Access control:
Access control is the practice of limiting access to network resources to only authorized users, devices, and applications.
Data encryption:
Encryption is the process of converting data into a form that cannot be easily read by unauthorized users. This helps to protect sensitive data in transit and at rest.
Regular updates and patches:
Regularly updating network devices and software with the latest security patches helps to protect against known vulnerabilities.