There are three main ways to implement security testing in your SDLC: Outsourced team. Hire an external team of security experts for an audit. Security consultant. Involve a security consultant during the project planning stage to identify potential security risks early on. Secure SDLC approach. Implement a secure SDLC approach in-house, integrating security practices throughout the development lifecycle. Learn more about the pros and cons of each approach in our article about the secure software development lifecycle.