Microsoft says North Korea-linked hackers stole sensitive information

Thallium is believed to be operating from North Korea, Microsoft said in a blog post, and the hackers targeted government employees, think tanks, university staff members and individuals working on nuclear proliferation issues, among others. Most of the targets were based in the United States, as well as Japan and South Korea, the company said. Thallium tricked victims through a technique known as "spear phishing", using credible-looking emails that appear legitimate at first glance.

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