The National Lottery is an iconic institution that brings joy, excitement, and life-changing opportunities to millions of people worldwide. With the digitization of lottery operations, ensuring the integrity and security of the lottery system has become a top priority for organizations like Camelot, the operator of The National Lottery in the United Kingdom. This responsibility falls on the Chief Information Security Officer (CISO), a key figure responsible for safeguarding the lottery's digital infrastructure, protecting customer data, and preventing fraud and cyber threats. This article explores the critical role of the CISO at Camelot in ensuring the integrity of The National Lottery, highlighting their responsibilities, strategies, and the significance of maintaining public trust.