📖 32. Internet Security

📖 From Data Communication and Networks • 255 questions available

About 32. Internet Security

Internet security addresses real-world threats exploiting protocol vulnerabilities, misconfigurations, and human factors across the global network ecosystem. Firewalls filter traffic based on rulesets, IDS/IPS detect and block malicious patterns, VPNs create encrypted tunnels over untrusted networks, and DNSSEC authenticates name resolution, forming defensive layers against DDoS, malware, phishing, and advanced persistent threats targeting infrastructure and users alike.

Emerging concerns include supply chain compromises, API abuse, cloud misconfigurations, IoT botnets, and AI-generated attacks outpacing traditional signature-based defenses. Zero-trust architectures replace perimeter-centric models with continuous verification, threat intelligence sharing enables collective defense, and regulatory compliance (GDPR, NIST) mandates risk management frameworks, reflecting maturation from technical countermeasures toward holistic governance integrating people, processes, and technology in resilient cybersecurity postures.

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🔄 Last updated: 2026-08-02