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Rackspace’s Hosted Exchange environment started experiencing problems on December 2. The firm revealed one day later that it was dealing with a security incident that forced it to shut down its hosted Microsoft Exchange service.
Shortly after, it confirmed that the incident was a ransomware attack, but it did not provide any details. It’s unclear which ransomware group is behind the attack, whether any customer or other data has been compromised, or if Rackspace plans on paying a ransom.