The organizations that participated in the founding of CIS in October, 2000 include ISACA, the American Institute of Certified Public Accountants (AICPA), the Institute of Internal Auditors (IIA), the International Information Systems Security Certification Consortium (ISC2) and the SANS Institute (System Administration, Networking and Security). CIS has since grown to have hundreds of members with varying degrees of membership, and cooperates and works with a variety of organizations and members at both the national and international levels. Some of these organizations include those in both the public and private sectors, government, ISACs and law enforcement.[1]