Greetings, I'm Ali Khafagy, a Computer Science graduate passionate about cybersecurity with extensive experience in penetration testing and SIEM administration. As a cybersecurity engineer, I specialize in both defensive roles (building security infrastructures, SIEM, XDR, WAF, IDS/IPS, firewalls) and offensive roles (testing software, mitigating vulnerabilities). I have discovered vulnerabilities in major companies like Nokia, Coca-Cola, IBM, LinkedIn, Airbnb, AT&T, Compass, Orange, Vodafone, and IKEA. Through this blog, I share my insights, tips, and experiences to help strengthen the cybersecurity community. In addition to my cybersecurity work, I am also a Teaching Assistant at Culture and Science City, where I lead lectures, tutorials, and course development in IoT, Networking, Databases, and Computer Architecture, fostering an engaging and interactive learning environment.