Legit Reviews

I wonder how much you guys know about an app called FinFisher/FinSpy, that is said to be used by "democratic" governments to spy on its citizens through their computers and smart phones (rendering your rights non-existent)? The app is being developed by a German company called Gamma International and apparently many governments (incl. the US) has a subscription to it. Apperently anti viruses can't detect it and it gives full access to ones computer, being an "intelligent" app. it can even pose as a fresh installation of firefox etc.
Why are anti-viruses not detecting it? Are developers told to leave it alone, so these bastards can spy on everyone unhindered? Any thoughts on this?