Files.com keeps a clean, recoverable copy of your data off your production stack, including the S3, Azure Blob, Google Cloud, and Wasabi buckets your endpoint and server backup tools never touch. The copy is fed over a path with no inbound attack surface, and retention-locked so a compromised credential cannot delete it. You restore to a point in time before the incident, not just whatever your last mirror copied.
Most teams plan ransomware on desktops and servers and leave their production cloud buckets unprotected. Files.com syncs one bucket into a separate versioned bucket the attacker cannot reach, on the cheap archive tier you already pay for. So the clean copy was never in the blast radius.