The emergence of websites, mobile applications, platforms, registries and repositories that hold personal data has created a new environment that enables Machine learning driven services with rich insights and user experience. However, such services may need to access private data such as payment transactions, health records and identity information. Holding such data is beginning to be a liability and increases risks to organisations.The development of the HAT Microserver technology has resulted in the capability of individuals to own their own personal data server. By enabling individuals to collect all their data into their own server and use it to create value for themselves is a step in advancing the Internet. Indeed, the fact that such a technology is able to be deployed at scale would enable mass coordination and better markets for personal data usage to emerge, creating societal value. However, such a technology can also cause harm and left unchecked, would enable privacy to be for sale to the highest bidder and incentivising behaviors that could be damaging to the welfare of society as a whole. In short, the HAT Microserver technology would generate a new set of product opportunities as well as risks in personal data exchanges. This Rating Standard aims to bring together current good practices of data conduct to address these opportunities and risks.