[tomcorrigan]

> Swiss post, a company that still thinks that a 4 digit pin on their debit card is good enough

How many examples can you provide of a 4 digit card pin being brute forced? Is there any other scenario where a 4 digit pin has been compromised but a 6 digit pin would be safe?

[pilif]

4 digit codes are even easier to shoulder-surf than the 6 digit ones.