The enemy in the cockpit by Maddalena Conti

Aviation security has become very good at imagining the enemy outside the aircraft. Terrorists. Hackers. Drones. Missiles. Saboteurs. Cybercriminals. Foreign intelligence services. Every year brings another sophisticated threat model, another security conference, another technological solution promising to make the skies safer.

And yet, sometimes the most dangerous person on an aircraft is already inside the cockpit. That is the uncomfortable lesson aviation still struggles to absorb. An international security review following an incident in which a flydubai co-pilot assaulted the captain during a flight should not be treated as some bizarre personal drama, an unfortunate exception caused by one unstable individual. It should force a much more disturbing question: what happens when the human being operating the machine becomes the threat?

The aviation industry has spent decades building layers of technical redundancy. Aircraft have multiple engines, navigation systems, communication systems and increasingly sophisticated automation. Cockpits are designed around procedures, checklists and disciplined cooperation. But there remains one primitive assumption buried beneath all this technological sophistication: that the two people sitting in the cockpit will remain psychologically capable of cooperating.

That assumption is no longer good enough. Pilots are human beings. They experience exhaustion, depression, anxiety, rage, financial pressure, relationship breakdown, grief, medication problems, addiction, professional humiliation and private crises. They can have extraordinarily bad days while being expected to perform an extraordinarily precise job thousands of metres above the ground.

And the industry has historically preferred not to look too closely. The reason is obvious. Aviation depends on confidence. Airlines do not want passengers wondering whether the pilot is psychologically fit to fly. Regulators do not want to create systems that appear intrusive. Pilots understandably fear that admitting psychological difficulties could damage their careers. The result is a dangerous silence disguised as professionalism.

The cockpit is not a normal workplace. Two people can become a closed operational system with enormous responsibility and very limited escape. If one of them suddenly becomes aggressive, irrational or incapacitated, the other may have seconds or minutes to understand what is happening and respond correctly.

Yet crew training remains overwhelmingly focused on technical competence and predictable emergencies. Human conflict is often treated as a communication problem when it can become something much uglier.

The answer is not to create a flying police state where every pilot is psychologically interrogated before boarding. Nor should mental-health difficulties automatically become grounds for professional exile. That would simply encourage pilots to hide problems even more effectively.

The answer is honest prevention. Airlines need stronger confidential psychological support, meaningful fatigue monitoring, better peer-intervention systems and clearer procedures for recognising behavioural deterioration before it reaches the cockpit. Crew members should be trained not merely to manage disagreement but to identify when a colleague's behaviour has crossed from stress into operational danger.

And there must be mechanisms allowing a crew member to say, “Something is wrong,” without being branded disloyal, weak or professionally suicidal. This is where aviation's obsession with technology becomes almost absurd. We can build an aircraft capable of navigating oceans with extraordinary precision, yet we remain remarkably primitive when it comes to recognising a human crisis sitting behind the controls.

The future of aviation security cannot simply be another firewall, another biometric scanner or another automated warning system. It must include the messy, unpredictable, uncomfortable human being. Because the cockpit does not become safe merely because the aircraft is technologically brilliant.

The machine can be redundant. The software can be monitored. The doors can be reinforced. But the people behind those doors remain human. And pretending otherwise may be the most dangerous security failure of all.