CIO Mag: A key security takeaway from Walmart’s chip-and-PIN suit against Visa

Credit and debit cards with embedded chips are becoming more common in the United States, and they’re slowly replacing the old-style cards with familiar magnetic stripes. Europe and Canada have used chip-and-PIN cards for years, and the cards are generally known to be more secure. In fact, the cards have reduced fraud in the United Kingdom by about 75 percent since they were first introduced