yeah, sounds like it's the pdf (native structure) itself responsible for this possible threat >>> embedded virus contained in the document, not even using a security flaw. There's nothing Adobe can do against that. It's normally up to the user to be careful and avoid clicking, as long as a dialog box is displayed... but this can be controlled too according to the author of that article... I guess many other types of documents could be infected in a similar way. That's life, that's where you browse and how you browse. Legit sites don't spread such stuff, unless a site has been hacked...and I guess this sort of malware is absolutely undetectable by any AV...(may be if full file scan is selected, not sure...)
