A Delta Air Lines flight from Las Vegas to Atlanta (flight 591) was disrupted after the plane's in-flight Wi-Fi network was replaced with a fake network dubbed "Delta WiFi Fast" that reportedly presented a phishing page. Federal authorities are investigating; suspicion immediately fell on DEF CON 34 attendees travelling home from the conference, though the perpetrator is unconfirmed. The episode highlights how in-flight connectivity can be weaponised for credential harvesting and the difficulty of attributing such incidents.