The chain always breaks by the weakest link. Considering that you can very easily open the zipper with a ballpoint pen (<a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=wpIJVWXsBBI" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=wpIJVWXsBBI</a>), and close it again as if it was never open, that the secret of the lock was revealed is irrelevant.