Back in May, the ransomware WannaCry began infecting critical infrastructure across Europe and in the United States, rising to 230,000 infected machines in 150 countries within a day of its release. The infection was stopped in its tracks when a cybersecurity researcher with Kryptos Logic, Marcus Hutchins (aka MalwareTech), registered a domain that functioned as a sort of kill switch, turning the malware off before it encrypted user data and locked down the system.
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