<p>This lesson introduces the fundamental concepts of cybersecurity and its importance in protecting digital systems, networks, and data from cyber threats. As modern applications and services rely heavily on the internet, understanding cybersecurity helps users and developers maintain the safety, privacy, and integrity of information within a platform like Nexus Pro. In this lesson, learners will explore how cyber attacks occur, the common types of security threats (such as phishing, malware, and unauthorized access), and the basic principles used to defend systems against them. The lesson also explains the role of secure authentication, proper data handling, and safe online practices in preventing security breaches. Additionally, the module highlights real-world applications of cybersecurity in web applications, including protecting user accounts, securing databases, and monitoring suspicious activities. By the end of the lesson, learners will have a foundational understanding of cybersecurity concepts and how they contribute to building and maintaining secure digital platforms.</p>