[frou_dh]

That has to be some kind of fallacy:

The implication that just because a best-prepared "opponent" can thwart someone, there's no point in engaging the <unknown>-prepared.

[leni536]

I think it fits into the "perfectionist fallacy"[1] category. I don't really know how widespread the name of this fallacy though.

[1] http://www.mhhe.com/mayfieldpub/ct/ch06/glossary.htm

[viraptor]

There's got to be some threshold though - it's not best prepared. A few years ago we wouldn't use much cloud storage because there weren't many options to do so. Right now, if you are a terrorist and carry your data with you, unencrypted, you're a complete idiot and will likely fail in some other way.

[Zombieball]

I've had the same thoughts myself and always come up with the same conclusion: educated engineers would make great terrorists!

Turns out after a quick Google search there are a plethora of articles titled "Why are so many terrorists engineers?"

I wonder if there are many more good terrorists engineers who just haven't been caught yet.