Rishi Sunak has taken up paid advisor roles at tech giant Microsoft and artificial intelligence start-up Anthropic. The former prime minister has been told he must not lobby ministers on behalf of the companies by the Advisory Committee on Business Appointments (Acoba), an independent watchdog which oversees the activities of former government figures. Sunak - who remains the MP for Richmond and Northallerton - said he was "delighted" to be working "with two of the world's leading tech firms"