Margaux Lefèvre

Margaux Lefevre is a GNSS & Navigation Threat Analyst at AeroVigil, where she focuses on the security and integrity of satellite navigation in the pre-flight environment. Her work centres on GPS and GNSS jamming and spoofing — characterising how interference emerges across regions, how it degrades navigation integrity, and what it means operationally for crews and dispatchers planning a route. She translates raw signal and incident data into clear, decision-ready assessments for flight operations and security teams.

A French analyst with a specialist background in navigation threats, Margaux pairs technical depth in radio-frequency interference with a practical understanding of how aircraft systems and procedures respond when a position fix can no longer be trusted. She is a published author and contributes written analysis on GNSS interference trends and navigation resilience, helping operators anticipate disruption rather than react to it.