A Flydubai co-pilot stabbed the captain, who saved 182 lives. This terror-linked incident exposes aviation's internal cockpit vulnerability, contrasting post-9/11 external threat focus. Preventing crew from becoming threats is essential. The article advocates rigorous screening, improved risk identification, and swift internal threat response protocols. Institutionalizing these without undermining operational autonomy is vital, urging a comprehensive security reassessment for this new challenge.