timothy from the local-boy-makes-good dept.
First time accepted submitter jovius writes "The Matriculation Examination Board of Finland has just opened an international hacking contest to find flaws and exploits in Digabi Live — the Live Debian based operating system to be used in the all-digital final exams by the year 2016. The contest ends on 1st of September, and the winners are about to scoop hefty hardware prizes, also available as cash."
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"