Ransomware Can't Encrypt Files It Can't Write To.
FileSure blocks ransomware at the file system level — before it executes, before it encrypts, before you have a problem. It works on ransomware variants nobody has seen before, because it doesn't rely on recognizing the threat.
Why Antivirus Isn't Enough Anymore
Antivirus software works by recognizing threats it has already seen. A security researcher finds a new ransomware variant, analyzes it, creates a signature, pushes an update, and your antivirus learns to block it.
That process takes time. And ransomware groups know it.
Today, a new malware variant emerges every few seconds. The window between a new ransomware release and when your antivirus can detect it can be hours or days. That window is exactly when attacks happen.
FileSure doesn't play that game. It doesn't try to recognize ransomware. It simply controls what programs are allowed to do to your files.
How FileSure Stops Ransomware
The logic is simple. The protection is complete.
Ransomware has to write encrypted versions of your files to your hard drive. That's how it works. There's no way around it.
FileSure operates at the Windows kernel level and intercepts every write operation before it completes. You define a rule: unauthorized programs cannot write executable files to this system. Ransomware tries to install itself — it's not an authorized program — and the write is blocked.
It never executes. Your files are never touched.
What this means for you:
- A ransomware variant from this morning is stopped the same way as one from five years ago
- No signature update required
- No waiting for your vendor to catch up
- Works even when you're offline or disconnected from your management server
Works on the Systems You Actually Have
Including the ones your current security tools won't protect
FileSure runs on legacy and modern Windows systems, and Windows Server 2003 through Server 2022.
If you have medical equipment, industrial systems, or specialized software locked to an older Windows version — the kind of system that modern endpoint security tools won't even install on — FileSure protects those too.
See It Work in 5 Minutes
Install FileSure
Quick installation on your test machine
Run our test file
Download our harmless program that mimics ransomware behavior
Watch FileSure block it
See the attempt blocked and logged in real time
Then try opening a Word document. Watch it get recorded. That's the whole demo. It works exactly like that, every time.
Stop ransomware before it starts
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