There are many reasons why attackers have set their sights on retailers. An increasing number of attack vectors as a result of multichannel strategies, BYOD, QR codes and mobile wallets, as well as vulnerable point-of-sale (POS) terminals, legacy systems and third parties in the supply chain are just a few reasons why retailers make good targets. It's impossible to prevent every single attack, but there are actions retailers can take to be more proactive when a breach happens. At the end of the day, a good offense is the best defense. Here are five steps retailers can take to handle a cyberattack to help identify and remove advanced threats quickly and prepare for any future attacks: