Information Systems Security Association (ISSA) | 22,101 followers on LinkedIn. Developing and Connecting Cybersecurity Leaders Globally | The Voice of the Information Security Professional Information Systems Security Association (ISSA)® is a not-for-profit, international organization of information security professionals and practitioners. It provides educational forums, publications and peer interaction opportunities that enhance the knowledge, skill and professional growth of its members. Developing and Connecting Cybersecurity Leaders Globally