Why did my waitress add my credit card number to the bill? [more inside]
posted by terranova on Feb 28, 2009 - 27 answers

I didn't enter my "Verified by Visa" password, but NewEgg charged and shipped my order anyway. Can I skip this part every time? [more inside]
posted by 0xFCAF on Feb 9, 2009 - 5 answers

Can gas station attendants access my credit card number when I pay at the pump? Similarly, can any normal cashier/bagger/checker/etc. at a store with a self-swipe console charge my account after I have left? [more inside]
posted by pheideaux on Jan 21, 2008 - 13 answers

Device to steal numbers from your cards in your pocket? [more inside]
posted by Listener on Feb 24, 2007 - 18 answers

Credit card reissued because of possible fraud. What now? [more inside]
posted by zabuni on Feb 16, 2007 - 10 answers

I dissected my old VISA card. Underneath the hologram is a 4x4 matrix of rectangles. There are numbers or letters in each row, thus: blank, blank, '1', blank; blank, 'A', blank, blank;'C', blank, blank, blank; blank, blank, blank, '4'. Why are they there, and what do they mean?
posted by i_am_joe's_spleen on Apr 6, 2005 - 15 answers