The root of all evil is infested with termites

Update to previous dispatch: Agent Isoptera has been very busy recently.

"It's a matter of investigation how termites attacked bundles of currency notes stacked in a steel chest," he said. 

Conversely: We have reason to believe it may have been an inside job.   There were no termites.  Just the auto-hostility of money yanked from circulation to moulder, hoarded.  The general equivalent becomes toxic when left alone, and such negation will not go unfigured.  It will remember it is just paper, was once pulp, was wood, still is when it stops moving.  It will turn in on itself.  It will become termitic.