Digital age

This is a digital age in photography. Scanner technology and digital photography have come of age. Yet, ever so often, we apprehend spies with photographs and documents - hard copies or with maps in an age of wikimapia. I cannot believe that in this digital age, a person who is smart enough to spy is not smart enough to send the whole damn thing via cyberspace.

One plausible explanation (apart from the one obvious explanation) is that they were carrying digital images that were recovered. The other one is that the really important stuff has to be "delivered in person" to "prove their worth".

Now that begets another obvious question. How well protected and guarded is cyberspace? Any idea?