[1/2] Meta's Threads app and Twitter logos are seen in this illustration taken July 4, 2023. Meta, which launched Threads on Wednesday and has logged more than 30 million sign ups, looks to take on Elon Musk's Twitter by leveraging Instagram's billions of users. Spiro, in his letter, accused Meta of hiring former Twitter employees who "had and continue to have access to Twitter's trade secrets and other highly confidential information," News website Semafor first reported. "Twitter intends to strictly enforce its intellectual property rights, and demands that Meta take immediate steps to stop using any Twitter trade secrets or other highly confidential information," Spiro wrote in the letter. "No one on the Threads engineering team is a former Twitter employee — that's just not a thing," Meta spokesperson Andy Stone said in a Threads post.

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Persons: Dado Ruvic, Mark Zuckerberg, Alex Spiro, Meta, Spiro, Semafor, — that's, Andy Stone, Musk, Mark Lemley, Jeanne Fromer, Akash Sriram, Tiyashi Datta, Jody Godoy, Katie Paul, Shailesh Kuber, Josie Kao Organizations: REUTERS, Twitter, Meta, Facebook, Elon, Reuters, Stanford, New York University, Thomson Locations: Bengaluru, New York