It encompasses the whole application life cycle from requirements analysis, design, implementation, verification as well as maintenance.
Different approaches will find different subsets of the security vulnerabilities lurking in an application and are most effective at different times in the software lifecycle.
The OWASP Top 10 - 2017 results from recent research based on comprehensive data compiled from over 40 partner organizations.
[4] According to the OWASP Top 10 - 2021, the ten most critical web application security risks include:[5] The OWASP Top 10 Proactive Controls 2024 is a list of security techniques every software architect and developer should know and heed.
Ideally, security testing is implemented throughout the entire software development life cycle (SDLC) so that vulnerabilities may be addressed in a timely and thorough manner.