AI cyber threats: open letter to business leaders 15.4.2026 | Her Majesty's Revenue and Customs Open letter from DSIT Secretary of State Liz Kendall and Security Minister Dan Jarvis to UK business leaders. Liz Kendall, Secretary of State for Science, Innovation and Technology and Dan Jarvis, Security Minister has written an open letter to business leaders regarding AI cyber threats. https://www.gov.uk/government/publications/ai-cyber-threats-open-letter-to-business-leaders