The 5 key takeaways from the Twitter whistleblower

Twitter's former head of security is blowing the whistle on company practices that he says have jeopardized US national security and misled investors and regulators. With a nearly 200-page disclosure to the US government, Peiter "Mudge" Zatko has become the latest whistleblower to come forward from the tech industry.

Zatko levels a barrage of devastating allegations that US lawmakers who have received the disclosure say are extremely concerning. A highly respected cybersecurity expert with experience in senior roles at Google, Stripe and the Defense Department, Zatko claims Twitter (TWTR (TWTR)) is full of critical security flaws; may not be deleting the data of users who leave the platform as it is required to do; has misled the public about its spam account problem; may currently have foreign intelligence agents on the payroll; and that it hasn't lived up to years of legal obligations stemming from an earlier privacy settlement with the Federal Trade Commission, which could lead to further liability.

Here's more on some of the top takeaways from Zatko's disclosure.