Cyber Incident Victim: Dallas-Fort Worth International Airport
Date:
Oct 2022
Location:
United States of America
Summary
A significant GPS interference incident disrupted operations at Dallas-Fort Worth International Airport, affecting a 40-mile radius and prompting the FAA to reroute flights and close one runway. The unexplained anomalies rendered GPS unreliable for both airborne and ground aircraft, forcing reliance on legacy navigation systems. While the interference lasted approximately two days before ceasing abruptly, authorities found no evidence of intentional jamming or military involvement. Similar past disruptions in other regions were noted, though the cause remained undetermined despite investigations. The event highlighted vulnerabilities in GPS-dependent aviation infrastructure, leading to operational delays and cancellations but no safety emergencies.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On October 17, 2022, the Federal Aviation Administration (FAA) began investigating unexplained GPS interference affecting air traffic operations near Dallas-Fort Worth International Airport (DFW). The incident commenced around 1 PM local time, with initial advisories issued via the Automatic Terminal Information Service (ATIS) warning aircraft of unreliable GPS signals within a 40-nautical-mile radius of DFW. The Air Traffic Control System Command Center concurrently reported significant GPS anomalies disrupting inbound and outbound flights at DFW and neighboring airports, forcing some facilities to revert to pre-GPS navigation systems. Real-time monitoring by GPSjam.org revealed escalating interference intensity over several hours, with operator John Wiseman documenting unusual characteristics—unlike typical military-related disruptions—through time-lapse mapping data. By the following day, the interference persisted and expanded geographically, impacting aircraft on the ground in the DFW area and later near Waco, approximately 100 miles south. The anomalies ceased abruptly around 11 PM Dallas time on October 18 without explanation, concluding a 33-hour disruption window.
The incident caused operational disruptions including the closure of one DFW runway reliant on GPS-guided approaches, necessitating reroutes to unaffected airspace and alternative runways using legacy navigation aids. While the FAA confirmed no evidence of intentional jamming, its investigation failed to identify the interference source despite ruling out military operations and natural phenomena. Aviation experts highlighted the vulnerability of civilian GPS signals to accidental interference from 5G deployments or terrestrial radio sources, as well as documented risks of intentional spoofing historically observed in conflict zones. Industry professionals, including Shift5 CEO Josh Lospinoso, noted parallels to a January 2022 GPS outage in Denver that lasted over 33 hours, underscoring systemic fragility. Although the FAA assured no immediate safety risks, the event caused flight delays and cancellations while exposing dependencies on GPS for critical infrastructure. Secondary impacts included heightened scrutiny of alternative navigation systems like ADS-B and instrument landing systems, both previously demonstrated to be spoofable in research settings. The unresolved nature of the interference left authorities without mitigation strategies for future comparable incidents.