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Saturday, April 18, 2026

Twitter Whistleblower to Testify Before Senate Committee: How to Watch - CNET

Twitter's former head of security is scheduled to testify before a Senate panel on Tuesday about security and privacy problems he allegedly uncovered while working at the company.

Peiter "Mudge" Zatko filed an 84-page whistleblower complaint in July to the US Securities and Exchange Commission, Department of Justice and the Federal Trade Commission. In the complaint, he alleges his former employer prioritized user growth over privacy and security.

Zatko accuses Twitter executives of hiding bad news instead of trying to fix problems he brought to their attention. Twitter appeared to have a high rate of security incidents, some employees had disabled security and software updates on their devices and staff had too much access to user data, Zatko alleges in the complaint. Twitter pushed back against the allegations and said the whistleblower complaint has inconsistencies, inaccuracies and lacks important context.

The complaint has sparked more scrutiny from US lawmakers and regulators who are trying to rein in the power of big tech platforms. It also comes as Twitter is in a legal fight with billionaire Elon Musk who is trying to back out of buying the company for $44 billion. Zatko alleges that Twitter lied to Musk about the number of bots on its platform and Musk's lawyers are using the whistleblower complaint as part of their case.

Twitter fired Zatko in January, but his lawyers say that he didn't file the complaint to benefit Musk or to harm Twitter.

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