The NCSC absorbed and replaced CESG (the information security arm of GCHQ), the Centre for Cyber Assessment (CCA), Computer Emergency Response Team UK (CERT UK) and the cyber-related responsibilities of the Centre for the Protection of National Infrastructure (CPNI).[2] It built on earlier efforts of these organisations and the Cabinet Office to provide guidance on Information Assurance to the UK's wider private sector, such as the "10 Steps" guidance released in January 2015. In pre-launch announcements, the UK government stated that the NCSC would first work with the Bank of England to advise financial institutions on how to bolster online defences.[3]