It gets worse... The Commonwealth Bank of Australia requires 6 digits and exactly 6 digits...-Renegade
WRT
personal banking, it must be a different CBA you're talking about, the one I've used since they took over the State Bank of Victoria, (21 years ago), and that I've used NetBank with since it came out, (1997), have always allowed more than 6 digits....I know, my password has always been longer than 6 digits, (my wife uses an even longer password).
When I started using Netbank, a mix of alphanumeric characters wasn't mandatory but it was 2 years ago when my wife joined up, (it wouldn't let her create one that didn't have at least one digit and one character).
Your new password:
must be between 8 and 16 characters long
must contain both letters and numbers
must be different to your previous 5 passwords
should not contain a recognisable part of your name or your date of birth
must not contain your NetBank client number
can contain most characters except <>^`{}~=
Then there's your 8 digit client number to remember on top of that.
CBA Phonebank is the same, can be alphanumeric characters and longer than 6 characters.
And, if you're talking about ATM pins, then anything between 4 and
8 12 digits is fine, (mine is 8) - and that's been available for about 5 years.
Also, they'll send you a one off PIN via SMS when you try to pay a third party via NetBank for the first time or use a website that requires verification...providing you have that function turned on.
So, what particular service of CBA that requires exactly 6 digits are you talking about?