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PBS News Hour
Ransomware attack takes down LA hospital for hours
One of the greatest threats to private cybersecurity today is ransomware -- a cyber-attack that blocks access to a computer until the hacker is paid a ransom. The problem recently took on new urgency when a hospital in Los Angeles had its entire network shut down for hours, putting hundreds at risk; another high-profile breach hit L.A.’s health department last week. William Brangham reports.
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