Can we test protection against targeted attacks?

In my day job as a tester of anti-malware solutions, I often get asked the same question: how do I plan to test against Advanced Persistent Threats, aka APTs? These threats are very different from your everyday malware, and testing protection against them turns out to be a very different kind of task.

Story added 12. March 2014, content source with full text you can find at link above.