Matt Clifford, the entrepreneur who helped shape the UK's artificial intelligence strategy and previously advised the Prime Minister on AI policy, has been named on a leaked attendee list linked to Dialog, a private organisation co-founded by billionaire investor Peter Thiel.
Clifford later said he had been invited to the gathering but was not planning to attend. Dialog's planned 2026 retreat near Dublin reportedly include registration details for 222 participants drawn from technology, government, finance, academia and defence. The exposed information included attendee profiles, registration records and other internal data that was not intended to be publicly accessible.