What is CIS? A Center of Internet Security
What is CIS? A Internet Security Center
CIS is a non-profit organization “that harnesses the power of a global IT community to safeguard private & public organizations against cyber threats.” 1
The group provides its members with “consensus based guides” and prioritizes / recommends controls which were originally published by the Center for Strategic and International Studies (CSIS) https://www.csis.org/
1 twitter.com/CISecurity and cisecurity.org/controls/cis-controls-faq/