French to English Tech/Engineering IT (Information Technology)

Hello

I thought that I had figured out "Actif Critique" in sentences like

Temps de déclaration d’une vulnérabilité Critique sur un ***Actif Critique***

After checking, it seemed okay to say "Critical vulnerability on a ***Critical Asset***"

But now I have the word *** Passif *** in short sentences like

"Scan Actif / Passif:"

So what would a Scan Passif be? It can't be a scan on a Critical liability can it???

And if I start talking about simply active and passive scans, then what is an ***Actif Critique** in that case?

I'm completely lost.

Any help welcomed

Thanks