The company iProov does not provide a vaccine passport service and therefore no technical specification exists that could be shared. In addition, their service does not compare facial data. It scans a user-submitted photograph in real-time, as part of identity checks when registering to use NHS Login to gain access to health records or personal information. NHS Login, under strict controls, compares this image and an image captured from a user’s ID document, such as a driving licence or passport. No information is either shared or stored within iProov or the NHS App.