Airports are critical hubs, always busy, always under threat. Since 2020, a number of serious issues have come into sharper focus: human trafficking, violence toward airline and airport workers, and gaps in existing security systems. One of the most insidious issues is human trafficking. According to the International Air Transport Association (IATA), data from cases assisted by the International Organization for Migration (IOM) over the past decade show that nearly 80 percent of international human trafficking journeys pass through official border crossings, including airports. Modern slavery and trafficking affect millions globally, some 27.6 million people in 2021 were estimated to be living in conditions of modern slavery. The sheer volume of people moving through international airports, combined with variable training and resources, means traffickers can slip in under the radar.
Another major concern is violence and abuse toward airport and airline personnel. A survey in 2024 by IBS Software found that 72 percent of airport and airline staff have experienced abuse, ranging from intimidation or verbal assault, to physical incidents, particularly following disruptions like delays or cancellations. The mental health fallout is also considerable, with over half of those surveyed reporting negative effects on well-being. There have been documented surges in violent behaviour, particularly in summer 2021, largely linked to frustration over COVID-19 policies. Beyond individual acts of violence, airports face threats such as smuggling of drugs and weapons facilitated by lapses in employee screening. For instance, in the US, Denver International Airport began piloting an AI tool called Hexwave in late 2023 to screen aviation workers entering restricted zones, after current loopholes allowed workers to bypass stricter controls, a vulnerability that has been exploited by criminal gangs.
Existing security strategies include manual screening, body scanners, x-rays for luggage, metal detectors, checkpoint staff monitoring, physical security, customs and immigration checks, and sometimes behavioural profiling. Airlines have also implemented human trafficking awareness courses for flight crew and service employees. These strategies, however, have significant gaps. Manual screening is labor-intensive and subject to human error. People acting suspiciously may go unnoticed amid crowding, and behavioural profiling can run into issues of bias, privacy, and inconsistency. Training programs help, but staff are overworked, turnover is high, and sometimes suspicious activity is not reported or recognized. Disruption events like weather, delays, or pandemics increase stress and breakdowns in communication, making abuse or security lapses more likely. Worker screening gaps, especially in access to secure zones, remain opportunities for exploitation. In short, many threats slip through the cracks because systems are often reactive, responding after something happens instead of anticipating or preventing it. Surveillance largely looks backward rather than providing early warning signals, and many systems are overburdened or understaffed during critical moments.
AI is beginning to shift the paradigm toward more intelligent, proactive airport security systems. Smaller pilots and larger institutional programs alike are exploring how to detect threats before they escalate, reduce false positives, and improve resource allocation. TSA in the U.S. is developing algorithms for more advanced baggage screening, using computed tomography scans of carry-on luggage and object recognition to flag prohibited items such as guns or knives. Research also includes automated illicit item detection in x-ray images using deep neural networks, helping reduce the mental load on human screeners and catching items that might be obscured or overlooked. Surveillance systems are another area of growth. Intelligent video analytics can monitor crowding, loitering in sensitive zones, suspicious behaviour, and anomalies in flow patterns. Algorithms trained to analyze how people move can detect acts of violence or potential threats in real time. AI is also being used to manage the operational side, predicting bottlenecks in passenger flow, staffing requirements, and gate allocation, which indirectly improves security by reducing chaotic situations. Denver International Airport’s trial of the Hexwave system is especially notable for closing the loophole exploited by criminal gangs and increasing screening of workers entering secure areas.
As BlueFin Solves CEO Chris Chib explains, “Airports are among the most sensitive entry points in the world, and security technology can’t afford to be reactive. Because of this, we need to shift from a reactive security system to a proactive one.” He adds, “The next generation of security technology must be able to identify risks in real-time rather than after the fact. Any system at this scale has to align with the security and regulatory frameworks of each country it operates in, while also preparing for future capabilities like facial and behavioral recognition inside terminals.”
What could this look like in practice? Some possibilities include real-time behavioural recognition to detect aggression or abnormal movement patterns before violence erupts, predictive risk scoring that combines ticketing and travel history to highlight flights needing more attention, and automated detection of trafficking patterns by flagging clusters of passengers traveling under suspicious conditions. Reinforced worker screening could extend AI-assisted explosive or prohibited item detection to staff, not just passengers. Privacy-aware facial recognition and identity verification could also speed checkpoint processes while maintaining regulatory oversight.
Challenges remain: ensuring accuracy, protecting civil liberties, securing AI systems from hacking, and integrating with existing regulations across jurisdictions. Yet as airports get busier and threats more varied, the shift toward proactive, AI-powered security capability is already underway. The hope is that airports will no longer simply react to danger but anticipate and prevent it before harm occurs.