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Parag Agrawal shakes up Twitter security team

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Parag Agrawal shakes up Twitter security team

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SAN FRANCISCO — Twitter shook up the top ranks of its security team this week with the layoff of the chief security officer and departure of the chief information security officer, the company told employees Wednesday, as its new chief General revamps social media service.

Peiter Zatko, the chief security officer better known within the security community as “Mudge”, is no longer with the company, Twitter confirmed. Rinki Sethi, the Information Security Officer, will be leaving in the coming weeks.

The changes follow “an assessment of how the organization was run and the impact on priority work,” according to a memo from Parag Agrawal, Twitter’s chief executive, which was sent to employees on Wednesday and obtained by the New York Times. Mr Agrawal said the “nature of this situation” limited what he was allowed to share with employees.

Ms. Sethi and Mr. Zatko did not immediately respond to requests for comment.

Credit…US federal government, via Reuters

Mr Agrawal, who was named chief executive of Twitter in November, has shuffled the company’s leadership since taking over from Jack Dorsey, one of the founders. In December, Mr. Agrawal reorganized the management team and fired Dantley Davis, the design director, and Michael Montano, the engineering manager.

Mr. Zatko and Ms. Sethi joined Twitter in late 2020. He is a well-known hacker and has had a long career in government and private industry. Prior to assuming his role at Twitter, he held positions at DARPA, Google, and Stripe. He began his career in cybersecurity in the 1990s, when he was a member of the hacking group Cult of the Dead Cow. He was recruited from Twitter after teenagers compromised the company’s systems in July 2020 and took over high profile user accounts.

Ms Sethi also joined Twitter after the hack and, alongside Mr Zatko, was tasked with improving the company’s security and protecting its users’ data. She was previously vice president of information security at IBM and had worked in security at Intuit and Walmart.

Lea Kissner, head of privacy engineering at Twitter, will become the company’s interim chief information security officer, according to current and former employees. They previously held senior security and privacy positions at Google and Apple.

Parag Agrawal shakes up Twitter security team

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