Musk Faces Ticking Clock in Probing Twitter Whistleblower Claims

A Delaware Chancery judge’s decision to hold Elon Musk to an October trial date over his attempt to abandon his $44 billion acquisition of Twitter Inc. keeps the billionaire and his team under a tight deadline as they hustle to investigate a whistleblower’s complaint.

Twitter has sued Musk, who’s also CEO of Tesla Inc., to get the deal done. Judge Kathaleen St. J. McCormick said Wednesday that Musk could amend his counter-claims to include allegations from Twitter’s former security chief, Peiter Zatko, who has accused the company of misleading investors about data protection issues.

But McCormick’s refusal to push ...