identify why you believe social engineering is the most critical thing you have learned thus far

identify why you believe social engineering is the most critical thing you have learned thus far. Explain why you believe this.

All content posted that references an external source requires a reference. Content that is paraphrased and not copied word-for-word may not require a source if information does not require an official voice (statistics, scientific data, special procedures/techniques, laws/regulations, etc.). 

Please use in text citation, cite any reference used, and no more than 10 sentences.