London, Oct. 10 -- Former British prime minister Rishi Sunak has accepted senior advisory roles with US tech giant Microsoft and artificial intelligence firm Anthropic, according to a UK government disclosure released on Thursday.

The watchdog also instructed him not to lobby the UK government on the company's behalf.

A separate report from September revealed that Sunak had also accepted a paid advisory role with Anthropic, another part-time position where he is expected to offer similar guidance to the company's senior leadership.

Sunak's corporate appointments come after reports that the former prime minister, who led the UK from October 2022 to July 2024, had been exploring opportunities in Silicon Valley following his party's defea...