Ian Thomas, who heads the City of London Corporation, tops the Black Powerlist in its 21st year.

Shares in Intel have continued to fall while the tech-heavy Nasdaq opens at its lowest level in more than two months.

Cyber correspondent Joe Tidy explains more about what is suspected to be the biggest hack in history.

Nicola Shaw, who has led the company since 2022, will step down in January, it is announced.