Apple Inc. is a U.S.-based international corporation that produces and sells consumer electronics, such as personal computers, smartphones, and digital media players. As of 2015, the total value of Apple’s stock was more than $700 billion, making it the largest publicly traded corporation in the world. The increasing popularity of Apple’s products, in particular its mobile devices, has made it a growing target of cybercriminals and has increased concerns over the security of users’ personal data. This entry first highlights the history of Apple Inc. and follows this with a discussion about device users’ security and privacy concerns and some criticisms leveled against Apple regarding the protection of its consumers’ data.