Open Web Application Security Project (OWASP) The Open Web Application Security Project (OWASP) is a 501c3 not-for-profit worldwide charitable organisation focused on improving the security of application software. Our mission is to make application security visible, so people and organisations can make informed decisions about true application security risks. Everyone is free to participate in OWASP, and all of our materials are available under a free and open software license. Protiviti is a Corporate Member and Sponsor of OWASP. For more information about this alliance, please complete this form.