Nothing quite like the reward of a new job opportunity when solving a puzzle. Apple recently hid an advertisement "for a talented engineer to develop a critical infrastructure component that is to be a key part of the Apple ecosystem." However, this wasn't just any kind of hiding - the ad "was listed under [a] web address...[which is one] of a series of servers that belong to Apple". Zack Whittaker, cyber-security reporter, "discovered it by chance while analyzing some data being sent from iPhone apps" but isn't looking to apply for the position. Although this isn't the first time "'hidden' messages [have been used] in recruitment campaigns", Apple's unique way of enticing potential recruits not only screens them before ever applying, but also proves out an innovative way of critical thinking.