New digital technologies such as cloud computing, Internet of Things devices and artificial intelligence tools can have positive social, economic and development effects. However, the use of technologies by companies, State agencies, consumers and the wider public can also change people’s lives for the worse, sometimes in severe and irreparable ways. This paper focuses on the third pillar of the UNGPs: the need for there to be effective remedies for business-related human rights harms. It is designed to provide an introduction to the key concepts and principles that govern access to remedy for the human rights harms that may be associated with technology products and services.