Hospitals, corporations and government offices around the world were hit by a massive wave of cyberattacks that seized control of computers and demanded payments from victims.
The ransomware impacted nearly 20 percent of the U.K.'s 248 public health trusts on Friday. All but six have been restored.
According to cybersecurity firm Avast on Friday, more than 75,000 ransomware attacks were reported in 99 countries, making it one of the largest and most damaging campaigns in history.
"The type of ransomware that's making its way through many organizations and industries is called Wanna Decryptor," Leon Kuperman, CTO of cybersecurity company CUJO, told us Friday. "It’s been around for two weeks but has only started spreading like wildfire today."
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