Your pursuit of an (ISC)² certification depends on your access to the best and latest knowledge of the (ISC)² CBK (Common Body of Knowledge), a compendium of topics relevant to information security professionals around the world. The (ISC)² CBK is the accepted standard in the industry and continues to be updated to reflect the most current and relevant topics required to practice in the field. All (ISC)² certification examinations test on the candidate's knowledge of the related CBK domains as identified in the Exam Outline.