A Delta flight from Las Vegas to Atlanta on Monday was disrupted when passengers, thought to have just left the DEF CON hacking conference in Las Vegas, allegedly spoofed the aircraft's onboard Wi-Fi. The apparent "evil twin" attack, in which a fake hotspot mimics a legitimate network to harvest login credentials, prompted a pilot message to air traffic control and drew the attention of the FBI, though it never compromised flight safety.

The incident, first reported via accounts monitoring air-to-ground pilot messages and later described on Reddit, involved a rogue network named "Delta WiFi Fast" with a phishing page designed to steal passengers' personal credentials. Delta confirmed an unauthorised Wi-Fi network, not linked to the airline, was briefly present onboard, and disabled its own Wi-Fi service for 30 minutes as a precaution; no aircraft systems were affected and no emergency was declared. The FBI's Atlanta office said it is looking into the matter, but no arrests have been made and agents did not meet the flight upon arrival.