Comment 2 for bug 1380669

I think we should be waiting for Mark's comment here; I too tend to think no production system should match the low randomness criteria that would make uuid predictions possible to some extent. On the other hand this has happened in the past, and so it would be a good thing to defend against it.

The issue now exist only for stable/icehouse, and I am ok to move this issue to public security if Mark and the OSSA team agree.