Due to the credit checking service that sits within Rightmove Passport we must, by UK law, keep your data on file for six years, even after you have stopped using the service.
This is because providing credit information services and credit references are regulated activities in the UK, meaning that the Rightmove Passport service is regulated by the Financial Conduct Authority (Firm Reference Number 805415).
If you would like to delete your data, you can find information on how to do this here.