In this video, we discuss network security as it is covered on Information Systems and Controls ISC CPA exam.
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Network security refers to the practice of securing a computer network infrastructure against unauthorized access, misuse, modification, or denial of service. It involves the implementation of various technologies, policies, and procedures to protect the integrity, confidentiality, and availability of data and resources within a network.

Key aspects of network security include:

Access Control: Limiting access to network resources only to authorized users and devices through mechanisms such as firewalls, authentication systems, and encryption.
Firewalls: Firewalls are the first line of defense in network security, monitoring and controlling incoming and outgoing network traffic based on predetermined security rules.
Intrusion Detection and Prevention Systems (IDPS): IDPS monitor network traffic for suspicious activity or policy violations. They can either alert administrators or take automated actions to block or mitigate threats.
Encryption: Encrypting data as it travels over the network helps ensure confidentiality. Secure protocols like SSL/TLS are commonly used to encrypt data in transit.
Virtual Private Networks (VPNs): VPNs create secure, encrypted connections over the internet, allowing remote users to access the network securely as if they were directly connected to it.
Network Segmentation: Dividing a network into smaller, isolated segments helps contain breaches and limit the spread of malware or unauthorized access.
Security Policies and Procedures: Establishing and enforcing security policies and procedures is essential for maintaining network security. This includes user authentication, password policies, and regular security audits.
Patch Management: Keeping network devices and software up to date with the latest security patches is crucial for addressing known vulnerabilities and reducing the risk of exploitation.
Security Awareness Training: Educating employees and users about common security threats and best practices can help prevent social engineering attacks and other security breaches.
Backup and Disaster Recovery: Regularly backing up critical data and having a robust disaster recovery plan in place ensures that the network can quickly recover from security incidents or system failures.
Network security is an ongoing process that requires vigilance, proactive monitoring, and continuous adaptation to new threats and vulnerabilities. As technology evolves, so do the strategies and tools used to safeguard networks against cyber threats.

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