The five types of network security include:
- Access Control: Regulates who can access the network and its resources, using authentication mechanisms like passwords, biometrics, and access control lists (ACLs).
- Firewalls: Acts as a barrier between a trusted internal network and untrusted external networks, filtering incoming and outgoing traffic based on predefined security rules.
- Encryption: Protects data by converting it into a secure format during transmission (in transit) or while stored (at rest), ensuring confidentiality and integrity.
- Intrusion Detection and Prevention Systems (IDPS): Monitors network traffic for suspicious activity and responds to potential threats by alerting administrators or blocking malicious traffic.
- Virtual Private Networks (VPNs): Creates a secure, encrypted connection over a less secure network, such as the internet, allowing remote users to access private networks securely.
In cyber security, the five types of network security primarily focus on protecting digital networks from cyber threats. These include:
- Network Access Control: Manages and restricts user access to the network based on predefined security policies, ensuring only authorized users and devices connect.
- Firewalls: Filters incoming and outgoing traffic to prevent unauthorized access and potential threats from entering or leaving the network.
- Encryption: Secures data transmissions and stored information by encoding it into an unreadable format, protecting against eavesdropping and data breaches.
- Intrusion Detection Systems (IDS): Monitors network traffic for suspicious activities and alerts administrators to potential security breaches or policy violations.
- Virtual Private Networks (VPNs): Establishes secure connections over public networks, allowing remote users to access private networks securely while encrypting data transmissions.
Five common network security threats include:
- Malware: Malicious software designed to disrupt, damage, or gain unauthorized access to computer systems and networks.
- Phishing: Fraudulent attempts to trick individuals into revealing sensitive information, such as passwords or financial details, usually through deceptive emails or websites.
- Denial-of-Service (DoS) Attacks: Overwhelms a network or system with excessive traffic, rendering it inaccessible to legitimate users.
- Man-in-the-Middle (MitM) Attacks: Intercepts communication between two parties to steal data or manipulate information without either party’s knowledge.
- Insider Threats: Risks posed by authorized individuals with malicious intent or who unintentionally compromise network security, such as through negligence or misuse of privileges.
The five types of computer security include:
- Physical Security: Protects computer hardware, peripherals, and data from physical threats like theft, vandalism, or natural disasters.
- Network Security: Ensures the integrity, confidentiality, and availability of data transmitted over networks, protecting against unauthorized access and cyber threats.
- Operating System Security: Secures the operating system (OS) against vulnerabilities, unauthorized access, and malicious activities through patches, updates, and access controls.
- Application Security: Protects software applications from security threats and vulnerabilities that can be exploited to gain unauthorized access or disrupt operations.
- Data Security: Ensures the confidentiality, integrity, and availability of sensitive data through encryption, access controls, and backup strategies.
Security spans various domains beyond network security, encompassing:
- Physical Security: Safeguards physical assets, premises, and individuals from threats like theft, vandalism, or unauthorized access.
- Network Security: Protects networks and their components from unauthorized access, misuse, or disruptions to ensure data confidentiality, integrity, and availability.
- Information Security: Focuses on protecting information assets and data from unauthorized access, disclosure, or destruction, encompassing aspects of data privacy and compliance.
- Cybersecurity: Defends digital systems, networks, and data from cyber threats, including attacks targeting computer systems, networks, and sensitive information.
- Operational Security: Safeguards organizational operations and assets, ensuring continuity and resilience against internal and external threats or disruptions.
- Application Security: Ensures the security of software applications throughout their lifecycle, addressing vulnerabilities and protecting against unauthorized access or manipulation.
- Cloud Security: Secures data, applications, and services hosted in cloud environments, focusing on access control, data protection, and compliance with cloud provider security standards.