Deep renovation efforts to improve the energy performance of buildings are of paramount importance for the overall energy reduction of nations. Like other construction projects, deep renovation ones are affected by the digital transformation of the construction industry. While this transformation involves the increasing utilisation of new technologies to optimise cost, time and quality at every stage, concerns emerge about how to maintain robust cybersecurity. This chapter summarises the cybersecurity research related to each deep renovation phase and provides an overview of relevant cybersecurity frameworks, standards, guidelines and codes of practice. The chapter also discusses the need for a contingency approach in deep renovation cybersecurity due to the varying requirements of each project and organisation.