Enlarge / Mark Zuckerberg and Elon Musk. (credit: Getty Images | AFP) The proposed cage match between Elon Musk and Mark Zuckerberg might never happen, but the tech titans may soon battle in a more civil arena. Musk's X Corp., the successor company to Twitter, yesterday threatened to sue Meta over alleged intellectual property violations in Meta's new Threads social network. Musk's lawyer Alex Spiro wrote a letter on behalf of X Corp.