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XSS: Cross-Site Scripting (XSS) is a vulnerability that allows an attacker to inject malicious scripts into a web application. These scripts are then executed in the browser of other users visiting the affected page. Unlike attacks that target the server directly, XSS attacks target the users of the application.

Understanding Devices and Form Factors: Modern applications are no longer limited to desktop computers. Users interact with websites and applications across smartphones, tablets, laptops, smartwatches, televisions, automotive displays, and emerging technologies such as foldable devices and AR/VR systems. Each device introduces unique screen sizes, input methods, capabilities, and user expectations. Understanding these devices and their form factors is essential for building responsive, accessible, and user-friendly experiences.

Accessibility: Accessibility is the practice of designing and developing websites, applications, and digital products so that they can be used by as many people as possible, including individuals with disabilities. Good accessibility ensures that users with visual, auditory, motor, cognitive, or other impairments can effectively perceive, understand, navigate, and interact with digital content. Accessibility is not only about compliance; it is about creating inclusive experiences that benefit everyone.

Pen Testing: Penetration Testing (Pentesting) is a cybersecurity practice where experts simulate attacks on systems, networks, or applications to find vulnerabilities. It helps identify security weaknesses before hackers exploit them. Pentesting uses tools, ethical hacking techniques, and follows standards like OWASP to improve system security and protect sensitive data.