Nisse-Sec Team

Privacy-first. 100% offline. Nothing ever leaves your PC.

No uploads. No data collection. No tracking.

WinRansomProtect

Offline Anti-Ransomware

32 real-time protection rules. Stop ransomware before it encrypts your files. Quarantine and restore. 100% offline, no cloud, no telemetry.

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DocRedactNow

Offline Document Redaction

Permanently redact sensitive content from TXT, CSV, DOCX, XLSX, PPTX, and text-based PDF files. Batch processing and pattern-based redaction. All done locally. No uploads.

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WinSystemHarden (Free)

Offline System Hardening

29 hardening rules inspired by CIS & NSA guidelines. Three hardening plans. One-click rollback to any previous restore point. 100% offline, no sign-up, no telemetry.

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Two tools, one mission — keep your data safe.

WinRansomProtect

Real-time Ransomware Protection

Who is it for?
Anyone who wants to keep their personal files safe from ransomware.

What it solves:
Stops ransomware before it locks your files. Runs offline — no cloud, no data upload.

DocRedactNow

Removes sensitive data from documents

Who is it for?
Anyone who shares documents but wants to keep private info private.

What it solves:
Removes personal information before you share. Prevents accidental data leaks.

Why Nisse-Sec Team?

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100% Offline

All processing happens locally.
No cloud, no uploads.

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No Backdoors

Zero telemetry, zero data collection.

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Your Data Stays Yours

We never see your files. They never leave your machine.

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Built for Windows

Native Windows 10/11 apps.
No browser required.

We're a small, independent team building privacy-first security tools for Windows. No VC funding. No corporate agenda. Just good software.