In our materials on cyber security, I posed the question, "Why is Cyber Security a Challenge?". I then answered this question with all of the following reasons except:

Group of answer choices

A rapidly changing 'threat landscape' due to the continual emergence of new digital technologies $($e$.$g$.,$ Gartner Hype Cycle$)$

The rise of Big Data

Pervasive Digitization

The "People" Factor

Unrealistic cyber security compliance standards in the European Union