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Office 365 Business and Ransomware:
The Lurking Threat

For small to midsized businesses Microsoft Windows based systems remain dominant. Windows continues to be the operating system most widely used on desktops and laptops. And Microsoft Office remains the most widely used work office suite. So it’s no surprise that Windows systems remain the top target for ransomware, too. A stunning 100% of IT professionals reported they had seen Windows systems infected by ransomware. Ransomware typically encrypts your files and promises to decrypt data after a ransom payment.

The collaborative capabilities of Office 365 make ransomware defense more challenging. Before Office 365, you wrote a Word document on your laptop, saved it on your system or file server, then emailed it as an attachment to share outside your organization. Copies of your file could exist in several places: your laptop, a file storage server, your sent email, and the inbox of the recipient.

Thanks to shared files and OneDrive sync, your files may be in more places than ever. A user that shares a document with colleagues can end up with copies on multiple laptops. Each person with editing access might sync a copy to their system. When one person gets ransomware, files get encrypted — then the encrypted versions sync through to everyone else. The same is true for Sharepoint Online. As most business critical data is created in Sharepoint Online libraries, it’s important to note that ransomware is easily spread there via the sync client.

In fact, 29% of IT professionals reported that their clients had encountered ransomware that targeted Office 365. It takes just one visit to a malicious site, one accidental download, or one infected attachment to unleash ransomware.

To learn strategies and tactics that will help reduce your ransomware risk, protect your networks and devices, and ultimately help you recover your data when a ransomware event occurs, please fill in the short form below. You will then have immediate access to information that will help you reduce ransomware risks.