Security Fundamentals

In this section, we will discuss IPsec – Remote Access and Site-to-Site VPNs Introduction to VPN (Virtual Private Network) What is VPN? A VPN (Virtual Private Network) is a technology that creates a secure and encrypted connection between your device and the internet. It allows you to send and receive data safely and privately, even … Read more

This section explores key elements of password security policies, including management, complexity, and modern authentication alternatives. Passwords remain the first line of defence against unauthorized access. However, relying solely on weak or reused passwords can expose systems to significant risks. To strengthen authentication, organizations establish security password policies that define how passwords should be created, … Read more

This section explains how to configure and verify device access control with local passwords, ensuring that only authorized users can access network devices. Unauthorized access to routers, switches, or servers can compromise the entire network. Hence, one of the simplest yet effective methods to secure network devices is by using local passwords. What is Device … Read more

This section explains the security program elements — User Awareness, Training, and Physical Access Control. Introduction to Security Programs Elements Security program elements play a vital role in protecting an organization’s information and physical assets. They are the key components that form the foundation of an organization’s overall security strategy. They include the policies, procedures, … Read more

Network security plays a crucial role in protecting sensitive data, systems, and networks from malicious activities. Whether you are a student, IT professional, or business owner, understanding fundamentals of network security concepts is essential. In this article, we will understand the key security concepts: threats, vulnerabilities, exploits, and mitigation techniques, and explain how they relate … Read more