Elon Musk's legal team is demanding to hear from Twitter's whistleblowing former security chief, who could help bolster Musk's case for backing out of a $44 billion deal to buy the social media company.
Former Twitter executive Peiter Zatko - also known by his hacker handle "Mudge" - received a subpoena Saturday from Musk's team, according to Zatko's lawyer and court records.