https://www.youtube.com/watch?v=s7NtTqWCe24 https://sites.google.com/view/howtouseaiinapplicationsd8e/gen-ai-in-cybersecurity The complexity of modern software development necessitates a comprehensive, multifaceted approach to application security (AppSec) which goes beyond simple vulnerability scanning and remediation. A holistic, proactive approach is required to integrate security into every stage of development. The constantly evolving threat landscape as well as the growing complexity of software architectures is driving the need for an active, comprehensive approach. This comprehensive guide explores the most important components, best practices, and cutting-edge technology that comprise a highly effective AppSec program that empowers organizations to safeguard their software assets, reduce threats, and promote the culture of security-first development. The success of an AppSec program relies on a fundamental shift in mindset. Security must be seen as a vital part of the development process and not as an added-on feature. This paradigm shift necessitates close collaboration between security personnel as well as developers and operations personnel, removing silos and fostering a shared belief in the security of the software they develop, deploy and manage. When adopting the DevSecOps approach, companies can weave security into the fabric of their development workflows, ensuring that security considerations are considered from the initial designs and ideas up to deployment and maintenance. This approach to collaboration is based on the development of security standards and guidelines, that offer a foundation for secure code, threat modeling, and management of vulnerabilities. These guidelines should be based upon industry-standard practices like the OWASP top 10 list, NIST guidelines, and the CWE. They must be able to take into account the specific requirements and risk that an application's and the business context. By formulating these policies and making avai