Security is anything but new: humans have had security concerns since the dawn of time, and security fundamentals have not changed since then. How we implement security fundamentals can and often does change as technology advances.
Security core concepts have nothing to do with technology. Although we often focus on securing digital assets and hence technology based security controls, concepts such as authentication, defense in depth, least privilege, perimeter protection, and risk management are not based on technology.
This talk explains core security concepts, which have been constant for millennia and whose understanding are critical for securing our assets. Unless these are understood and implemented 'well, no cutting edge or other tools, techniques, or technologies matter.
This talk will also be invaluable if you are studying for the GSEC, GSLC, CISSP, and many other certifications!