Occurred on November 4, 2017 / Des Peres, Missouri, USA
Info from Licensor: "My friend Alex and I are technology enthusiasts. We decided to go check out the new iPhone X to try it out. Alex, his younger brother, and I went to purchase an iPhone X. Alex set his phone up with FaceID, whereas my phone had not been set up and was still at the 'Hello' screen. We went to the food court afterwards to take photos of our phones on the table for Instagram. After taking the photos, Alex's brother picked up Alex's phone to look at the build of it, and it unlocked. We thought Alex might have been too close or something as it had only been set up with his face. Alex took the phone back, unlocked it with his face, and it worked fine. He then locked the phone and gave it back to his brother, who then picked it up and it unlocked with his face also. Alex is 20, and his brother is 16. They're not twins. Upon realizing that Alex's phone unlocked with his brother's face, we were dumbfounded. I grabbed my old phone and recorded a video of it to hopefully bring attention to the issue, so that Apple could fix it with software updates. After uploading the initial video, we went back to Apple and asked them about it. They provided an explanation and a potential remedy."