Logic tells us that people will worry about what's going on in their own backyards before thinking about the trials and tribulations of others. But once again, thinking logically, if people show interest in others' troubles, then they would probably become concerned with their own.
We can go back history...
Credit Card Identification Number
This number is recorded as an additional security precaution.
4 digit, non-embossed number printed above your account number on the front of your card.
3-digit, non-embossed number printed on the signature panel on the of the card immediately following the card account number.
3-digit, non-embossed number printed on the signature panel on the back of the card.