31 Dec 2026

Varonis is pulling the plug on on-prem. ProLion isn’t.

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ProLion for Windows File Server
Industries
Healthcare

The shares nobody has audited since 2017.

Server 2019, 2022 and 2025. Where most of the orphaned permissions actually live — and the first place an AI agent will look.

In DataDefense and DataGovernance
Windows Server

Connected through the ProLion Security Service

How it connects.

The ProLion Security Service runs on the file server and reports every file operation to the platform. Register a system and the platform discovers its topology. Monitoring runs through the file system’s own interface, by way of lightweight collectors in each data center, and analysis scans run on the schedule you set. Nothing is installed on endpoints, and everything stays on your own hardware, including at sites with no outbound connection.

Connection
The ProLion Security Service on the file server
The native route into Windows file activity
Supported
Versions
Windows Server 2019, 2022 and 2025
The versions the platform is certified on
Supported
Protocols
SMB shares
Including the shares that quietly resolve to Everyone
Supported
Coverage
Windows, ONTAP and Dell in one landscape tree
One ruleset and one audit trail across all of them
Supported

What you get on Windows File Server.

Full file activity
Every read, write, rename and delete on your SMB shares, recorded with user, path and timestamp.
Broken inheritance, found
The folders where someone clicked past the warning years ago, and the shares that quietly resolve to Everyone.
Capacity reports
Capacity, growth, hot and cold data and file types — the questions nobody could answer for the file server.
Containment in seconds
The account behind an encryption run is cut off from the shares automatically.
Restore scoped to the damage
Single files, or everything one blocked account changed.
Same console as your SAN
Windows File Server next to ONTAP and Dell, not in a tool of its own.

Let’s solve your data challenges.

Connect with our engineers to find the right approach for your infrastructure.

Why the file server is usually the weak spot.

It is the oldest share in the estate, it has the most hands in its history, and it is the one system where nobody has a list of who can reach what. An agent that reads file shares does not care how old the permission is.

Talk to an engineer who knows your data.

Four fields, and somebody who knows ONTAP, PowerScale and what FPolicy does. Not a qualification call.

Four fields. No hidden newsletter.

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