Essentials of Network Security Management
Security is fragile. Hackers need to discover only a single flaw in your defenses to mount an attack. Changes to the infrastructure, whether physical or logical, could open new holes in the network. Additionally, users and personnel may intentionally or accidentally breach security.
Network security management best practices are recommendations, guidelines, or standard operating procedures for obtaining reasonable security on a real-world budget. Best practices are usually not specific recommendations for products or tools; instead, these are recommendations for philosophies, stances, or concepts to use.
Focus on the core security services when designing security: confidentiality, integrity, and availability. ...
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