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Sunday, April 19, 2026

Twitter whistleblower reveals employees concerned China agent could collect user data - Yahoo Finance

By Sheila Dang and David Shepardson

(Reuters) -The FBI informed Twitter Inc of at least one Chinese agent working at the company, U.S. Senator Chuck Grassley said during a Senate hearing on Tuesday where a whistleblower testified, raising new concerns about foreign meddling at the influential social media platform.

Peiter "Mudge" Zatko, a famed hacker who served as Twitter's head of security until his firing in January, said some Twitter employees were concerned the Chinese government would be able to collect data on the company's users.

Twitter has come under fire previously for lax security, most notably in 2020 when teenage hackers seized control of dozens of high-profile accounts, including the verified profile of former U.S. President Barack Obama.

On Tuesday, Zatko's testimony before the Senate Judiciary Committee revealed Twitter's security issues could be far more serious, alleging for the first time that the company was informed of agents of the Chinese government working at the social media firm.

Still, shares of Twitter rose almost 1% amid a sharp market selloff. The stock moves almost exclusively based on sentiment about whether billionaire Elon Musk will be forced to complete his $44 billion deal to buy the company, and the Tuesday gain suggested investors did not see any new details that could favor Musk's effort to abandon the deal.

And while Grassley, a Republican, wondered how Twitter CEO Parag Agrawal would keep his job if the allegations were true, many...



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