Download the client
One static binary per platform. No installer, no runtime, no dependencies — copy it to the test machine and run it.
This binary is designed to be flagged
Your own AV may quarantine it on download, and so may your browser. That is expected — it contains inert malware test signatures on purpose. Run it only on a disposable test machine and read the safety notes first.
Before the first real run, --explain prints every command, contact and
change the suite would make without running any of it, and
--list-targets prints every outbound destination it can ever reach.
Both are safe on any machine, and they are what a security team needs in order to approve a run.
Linux
- Linux x86-32 securitycheck-linux-386 5.2 MB published 2026-08-13 UTC
- Linux x86-64 securitycheck-linux-amd64 5.4 MB published 2026-08-13 UTC
Windows
- Windows x86-32 securitycheck-windows-386.exe 5.4 MB published 2026-08-13 UTC
- Windows x86-64 securitycheck-windows-amd64.exe 5.6 MB published 2026-08-13 UTC
macOS
- macOS Apple silicon / ARM64 securitycheck-darwin-arm64 5.6 MB published 2026-08-13 UTC
- macOS x86-64 securitycheck-darwin-amd64 5.8 MB published 2026-08-13 UTC
Verify what you downloaded
Checksums for every published binary: sha256sums.txt
sha256sum -c sha256sums.txt --ignore-missingGet-FileHash .\securitycheck-windows-amd64.exe -Algorithm SHA256