On Fri, 22 Nov 2019 08:05:40 +0000 (GMT), charles wrote:

And the sequence in which you push the buttons doesn't matter, as
long
as they're all pushed, so 'randomising' your birthday or whatever
won't make it any more difficult.

these beasts have numbers on wheels, The order does matter. I agree that
some of the cheaper electronic locks don't worry about order, but many
do.

Some push button mechanical door locks aren't bothered about order
either

Another, longer term, problem is wear or dirt (precense or abscence)
patterns. Four digits with the legend or button (top and sides where
it slides into the lock body) more worn or cleaner or dirtier than
the other buttons is a bit of a give away.

--
Cheers
Dave.