The malware entered the North Carolina transmission plant's computer network via email last August, just as the criminals wanted, spreading like a virus and threatening to lock up the production line.
The man responsible for setting guidelines for complex passwords for the U.S. National Institute of Standards and Technology says he regrets the advice, saying it "drives people bananas."
Cybercriminals using the name "Mr. Smith" posted a fresh cache of stolen HBO files online, and demanded that HBO pay a ransom of several million dollars to prevent further such releases.
An arraignment was postponed for a British cybersecurity researcher who was arrested on charges that, years before stopping the WannaCry attack, he created and distributed malware.
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