Ex-Twitter Exec Slams Firm's Weak Cybersecurity Policies

Twitter has major security problems that pose a threat to its own users' personal information, to company shareholders, to national security, and to democracy, according to an explosive whistleblower disclosure obtained exclusively by CNN and the Washington Post, Donie O'Sullivan, Clare Duffy, and Brian Fung reported for CNN Business.

Photo Insert: The whistleblower, who has agreed to be publicly identified, is Peiter "Mudge" Zatko, who was previously the company's head of security, reporting directly to the CEO.

The disclosure, sent last month to Congress and federal agencies, paints a picture of a chaotic and reckless environment at a mismanaged company that allows too many of its staff access to the platform's central controls and most sensitive information without adequate oversight.

It also alleges that some of the company's senior-most executives have been trying to cover up Twitter's serious vulnerabilities and that one or more current employees may be working for a foreign intelligence service.

The whistleblower, who has agreed to be publicly identified, is Peiter "Mudge" Zatko, who was previously the company's head of security, reporting directly to the CEO.

Zatko further alleges that Twitter's leadership has misled its own board and government regulators about its security vulnerabilities, including some that could allegedly open the door to foreign spying or manipulation, hacking, and disinformation campaigns.

The whistleblower also alleges Twitter does not reliably delete users' data after they cancel their accounts, in some cases because the company has lost track of the information, and that it has misled regulators about whether it deletes the data as it is required to do.

Zatko also says Twitter executives don't have the resources to fully understand the true number of bots on the platform and were not motivated to. Bots have recently become central to Elon Musk's attempts to back out of a $44 billion deal to buy the company (although Twitter denies Musk's claims).

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