Edward Snowden solves the Fermi Paradox?

Over a year ago I briefly mentioned the ‘Fermi Paradox’ in a post.  It seems that Edward Snowden has a solution!  Namely: alien civilizations share a universal need to keep their communications secure. Consequently, "alien signals are simply too well encrypted to be distinguished from background noise."

This actually strikes me as an eminently plausible explanation.  And it certainly is far less distressing than the one offered by Alastair Reynolds in Revelation Space.