Network Infrastructure Security

Protecting physical and logical network assets.

Comprehensive network security encompasses multiple defensive layers. Physical security begins with controlled access to communications rooms using electronic logs and video surveillance. Logical security implements segmentation separating user, management, and service networks. Network access control (NAC) authenticates devices before granting network access. Encryption protects data in transit using IPsec, MACsec, or TLS depending on context. Threat prevention systems block malicious traffic using signature and behavior-based detection. Regular vulnerability scanning identifies weaknesses before exploitation. Configuration hardening disables unused services and enforces strong authentication. Supply chain security verifies equipment integrity from trusted manufacturers. Security information and event management (SIEM) systems correlate alerts across infrastructure layers. Zero trust architectures eliminate implicit trust through continuous verification. Staff training ensures security awareness at all operational levels.

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