Graham King

Solvitas perambulum

credit-card

March 8, 2006 credit-card

February 1, 2006 credit-card software

November 9, 2005 credit-card

Humans, eh?

October 23, 2005 credit-card

Unraveling the mysteries of card verification values.

October 23, 2005 credit-card

Unraveling the mystery behind credit card number validation.

October 20, 2005 credit-card

"Credit card shenanigans: When flattery and desperation collide online!"