Definition
Network security encompasses the policies, practices, and technologies designed to protect the integrity, confidentiality, and accessibility of computer networks and data. It includes both hardware and software solutions that defend against unauthorized access and cyber threats.
Frequently Asked Questions
Related Terms
Firewall
A firewall is a network security device or software that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It establishes a barrier between trusted internal networks and untrusted external networks such as the internet.
Intrusion Detection System
An Intrusion Detection System (IDS) is a security tool that monitors network traffic or system activities for malicious behavior or policy violations. It alerts security teams when suspicious activity is detected, enabling rapid investigation and response.
Zero Trust
Zero Trust is a security framework that requires all users, devices, and applications to be verified, authenticated, and continuously validated before being granted access to resources, regardless of whether they are inside or outside the network perimeter.
VPN
A Virtual Private Network (VPN) creates an encrypted tunnel between a user's device and a remote server, protecting data in transit from eavesdropping. VPNs are used to secure remote access to corporate networks and to maintain privacy on public networks.
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