On 20/07/2019 09:32, Tim Lamb wrote:
In message , David
writes
....
Noting also that combination locks are allegedly easy to crack if you
know
the technique (which I don't) and there will always be someone who has
forgotten the combination.

First few digits of your mobile phone number?

Lots of people would share the same first few digits. The last few would
be more random.


--
Colin Bignell