Questions, answered plainly.

What does Vigilance do?

It compares a new version of software against the one you trust. It names any file that can suddenly do something it could not do before.

How is this different from antivirus?

Antivirus looks for known bad files. Vigilance looks for new behavior. It catches a clean-looking update that just gained a dangerous power.

Does it send my files anywhere?

No. It runs on your own computers. It opens no connection and holds no passwords. Nothing about your files reaches us.

Does it need the internet?

No. It works on a machine with no internet at all, like a factory floor.

What does it run on?

One file installs on Mac, Linux, Windows and the BSDs.

How do I install it?

Run one line. It reads your system, pulls the right file, and checks the hash. The Docs show the exact commands.

What happens when it finds something?

It names the file and what changed. It never blocks anything. You read the change and you decide.

What if it finds nothing?

It stays quiet. Silence means nothing gained a new power.

Can it stop a bad update on its own?

No. It tells you, and you decide. It does not know good from bad.

Is it open source?

No. It is a commercial product. You can still check every download. The Verify page lists the hash of each file and a full bill of materials.

What is in the free plan?

Every feature. Free covers one computer. Paid is $4 per computer each month, and you only pay for more computers. See Pricing.

How do I know my download is real?

The Verify page lists the sha256 of every file. The installer checks it for you. It refuses a file that does not match.

What if someone tampers with its records?

Editing what it remembers breaks the seal. Deleting it sets off an alarm that stays on until a person turns it off.

Someone owns the whole machine. Does it still help?

If an attacker already owns the computer, they own this too. No file checker can honestly claim otherwise. Start from a version you trust.