The recent headlines attest that no organization is immune to targeted attacks launched by skilled, persistent adversaries. These highly sophisticated attackers gain unprecedented success against large and even well-equipped organizations across the world. The detection of these attacks is a daunting task. However, if you are well aware of the Indicator of Attacks (IoA) and Indicators of Compromise (IoC), then you can resolve issues with better outcomes. In fact, the IoA and IoC are the two methods of detection in the security marketplace.