Ransomware preparedness for Microsoft 365

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Ransomware preparedness for Microsoft 365

How to harden a Microsoft 365 tenant against ransomware — prevention, detection, response, and recovery.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/ransomware-preparedness-for-microsoft-365

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Can ransomware encrypt files in SharePoint and OneDrive?

Yes, through a synced device: malware encrypts the local copies and the sync client uploads them as new versions. Versioning, the recycle bin, and Files Restore (which rolls a whole OneDrive or library back to a point i…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/ransomware-preparedness-for-microsoft-365

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What is Files Restore?

A OneDrive and SharePoint feature that restores an entire library to its state at any point in the last 30 days, undoing mass changes from ransomware, a bad sync, or a script. It uses version history, so libraries with…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/ransomware-preparedness-for-microsoft-365

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Do I need third-party backup to recover from ransomware in Microsoft 365?

Not necessarily for SharePoint and OneDrive files if versioning and Files Restore are in place and you act within 30 days; Exchange has Recoverable Items and holds. Backup (Microsoft 365 Backup or third-party) adds long…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/ransomware-preparedness-for-microsoft-365

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