This week, Hawaii reeled after an emergency text alert about an impending nuclear missile attack triggered panic—and then turned out to be a false alarm. Researchers provided more details about the sophisticated Triton malware that targets industrial control systems and impacted a real-world plant last year. The anti-fascist far-left movement known as Antifa gets some of its intelligence from a computer scientist named Megan Squire, who disseminates valuable and controversial information.

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