Recently, I've been flooding my mind with knowledge about assembly, low-level programming, as well as types of chip architectures and how they use different types of registers (i.e. 32-bit vs. 64-bit, or even earlier versions).
This helps me understand and grasp concepts and fundamentals of reverse engineering, which are potentially useful when dissecting malware. This is something that, in my opinion, is extremely hard to do, but nevertheless can aid the field of information security, as we're being bombarded with malware in an ever increasing fashion. Hence, security analyst and reverse engineering experts are two types of figures that are and will be extremely sought after.
Below, is one of lessons from a series I've been following. It introduces the student to architectures and goes a little more indepth of x86 chips.
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Cristi Vlad Self-Experimenter and Author