Security architecture and engineering involves designing and implementing systems that protect information and technology assets from threats. It focuses on creating a framework that defines security policies, controls, and procedures to safeguard data integrity, confidentiality, and availability. This discipline combines principles from computer science, information technology, and cybersecurity to build secure systems. Professionals in this field assess risks, identify vulnerabilities, and develop strategies to mitigate potential attacks, ensuring that organizations can operate safely in a digital environment.