Computer Networks

1. Network Security
   1. Threats and Vulnerabilities
      1. Malware
         1. Types of Malware
            1. Viruses
            2. Worms
            3. Trojans
            4. Ransomware
            5. Spyware
         2. Infection Vectors
            1. Email Attachments
            2. Malicious Downloads
            3. Social Engineering Tactics
         3. Impact on Networks
            1. Data Theft
            2. System Downtime
            3. Financial Loss
      2. Phishing
         1. Techniques
            1. Email Phishing
            2. Spear Phishing
            3. Whaling
            4. Vishing (Voice Phishing)
         2. Consequences
            1. Credential Theft
            2. Unauthorized Access
            3. Identity Theft
         3. Prevention
            1. User Education
            2. Anti-phishing Tools
      3. Denial of Service (DoS) Attacks
         1. Types
            1. Volume-Based Attacks
            2. Protocol Attacks
            3. Application Layer Attacks
         2. Distributed Denial of Service (DDoS) Attacks
            1. Botnets
            2. Reflection/Amplification Attacks
         3. Mitigation
            1. Traffic Analysis
            2. Load Balancing
      4. Man-in-the-Middle Attacks
         1. Techniques
            1. Eavesdropping
            2. Packet Sniffing
            3. Session Hijacking
         2. Protection
            1. Use of Secure Channels (e.g., HTTPS, VPN)
            2. Digital Certificates
   2. Security Measures
      1. Authentication
         1. Multi-factor Authentication
         2. Biometric Authentication
         3. Single Sign-On (SSO)
      2. Encryption
         1. Symmetric Encryption
         2. Asymmetric Encryption
         3. Public Key Infrastructure (PKI)
         4. HTTPS and Transport Layer Security (TLS)
      3. Firewalls and Intrusion Detection Systems (IDS)
         1. Types of Firewalls
            1. Packet Filtering
            2. Stateful Inspection
            3. Proxy-Based Firewalls
         2. IDS vs. Intrusion Prevention Systems (IPS)
            1. Host-Based IDS (HIDS)
            2. Network-Based IDS (NIDS)
      4. Virtual Private Networks (VPN)
         1. VPN Protocols
            1. Point-to-Point Tunneling Protocol (PPTP)
            2. Internet Protocol Security (IPsec)
            3. Secure Sockets Layer (SSL) VPN
         2. Benefits of Using VPN
            1. Secure Data Transmission
            2. Remote Access
      5. Security Policies and Protocols
         1. Security Policy Development
         2. Access Control Models
            1. Discretionary Access Control (DAC)
            2. Role-Based Access Control (RBAC)
            3. Mandatory Access Control (MAC)
         3. Incident Response Protocols
            1. Detection
            2. Containment
            3. Eradication
      6. Security Audits and Compliance
         1. Regular Security Audits
         2. Compliance Standards
            1. General Data Protection Regulation (GDPR)
            2. Health Insurance Portability and Accountability Act (HIPAA)
            3. Payment Card Industry Data Security Standard (PCI DSS)
   3. Network Security Tools
      1. Network Sniffers
      2. Vulnerability Scanners
      3. Penetration Testing Tools
      4. Security Information and Event Management (SIEM) Systems
   4. Latest Developments in Network Security
      1. Artificial Intelligence and Machine Learning in Security
         1. Threat Detection
         2. Automated Response Systems
      2. Blockchain for Enhanced Security
      3. Zero Trust Security Models
      4. Secure Access Service Edge (SASE)
   5. Best Practices for Enhancing Network Security
      1. Regular Software Updates
      2. Employee Training and Awareness Programs
      3. Strong Password Policies
      4. Data Backup and Recovery Plans