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Network Security

What is Network Security?

Network security protects the integrity, confidentiality, and availability of data as it moves across networks. It involves firewalls, intrusion prevention systems, secure gateways, and segmentation to block unauthorized access and detect malicious activity.

The main segments of Network Security are :

• Perimeter Defense: firewalls, IDPS, DDoS protection
• Access Control: VPN, ZTNA, NAC
• Traffic Filtering: DNS security, secure web gateways
• Network Architecture Security – segmentation, isolation

Main Network Security Players

Palo Alto Networks is a leader with next-generation firewalls (NGFW) and threat intelligence.

Fortinet offers unified threat management through its FortiGate platform.

Cisco Secure Firewall (ex-Firepower) secures network infrastructure with integrated hardware and software solutions tailored for enterprises and service providers.