As many shoppers are now aware, Target experienced a massive security breach between November 27 and December 15, 2013, with the personal data of up to 110 million customers having been compromised. In January, Neiman Marcus experienced a similar hack and in the weeks since, various expert reports have suggested that even more stores are currently also at risk. This has left many consumers wondering: How have so many retailers been hoodwinked by hackers? And is there any truly safe way to pay for goods outside of cash? To help better understand the changing credit card landscape consumers are facing, we've laid out all the details on what information might have been at risk and explore the various ways consumers can shop online and remain secure.