Techworld reports that Snow Leopard, Apple's highly anticipated new operating system, lacks basic security features that are found in Windows XP, Windows Vista and Windows 7 says Charlie Miller, a noted security researcher. Address Space Layout Randomization, commonly referred to as ASLR, randomly assigns data to the memory to make it more difficult for hackers to locate the of critical operating system functions. Charlie Miller of Baltimore-based Independent Security Evaluators who many people may remember from when he successfully hacked a fully patched Macbook in seconds, was disappointed upon hearing that Apple did little to improve ASLR from Leopard to Snow Leopard.