Musk subpoenas Twitter whistleblower as he battles to end takeover deal

Elon Musk has subpoenaed a former Twitter employee who has accused the social media company of poor spam policies and security vulnerabilities as the billionaire battles to get out of his $44bn agreement to buy Twitter.

The two sides have sued each other and are heading to a five-day trial on 17 October. Musk wants out of the deal and Twitter is asking Chancellor Kathaleen McCormick of the Delaware court of chancery to order him to buy the company for the agreed $54.20 per share.