Slightly tangential point but - Its weird that its normal to not be using any of the above mentioned technologies. It was unthinkable in the very recent past to not use (directly or indirectly) MSFT, Adobe technologies at all.
Are you using Google Chrome on a desktop/laptop? If so, then you're using Flash and they pushed out a patch via their update service.
We use all of them. I wish we didn't. I think that's the norm.