"The FBI first observed Ragnar Locker1ransomwarein April 2020, when unknown actors used it to encrypt a large corporation’s files for an approximately $11 million ransom and threatened to release 10 TB of sensitive company data," the FBI says in the TLP:WHITE flash alert. "Since then, Ragnar Locker has been deployed against an increasing list of victims, including cloud service providers, communication, construction, travel, and enterprise software companies."