Which phase of the software development life cycle incorporates secure coding patterns and best practice guidance from organizations like OWASP?

The phase of the software development life cycle that incorporates secure coding patterns and best practice guidance from organizations like OWASP is the solution design phase. During this stage, the architecture and design of the software are defined, and security is integrated as a key consideration. This is when developers should refer to secure coding practices and guidelines to ensure that security is built into the software from the outset.

Including secure coding patterns during the solution design phase helps to address potential vulnerabilities early in the development process and sets the foundation for secure implementation later on. By utilizing established best practices from authoritative sources such as OWASP, developers are better equipped to mitigate security risks and create a robust software architecture that can defend against potential threats.

In contrast, the regression test, unit test, and integration test phases primarily focus on functionality, performance, and ensuring that the code behaves as expected after changes or between different components of the software. While security testing can occur in these phases, it is the design phase that proactively integrates security considerations into the very structure of the application.