All the articles at the time just mentioned that it was a video file. For example https://www.theguardian.com/technology/2020/jan/21/amazon-boss-jeff-bezoss-pho

All the articles at the time just mentioned that it was a video file. For example https://www.theguardian.com/technology/2020/jan/21/amazon-boss-jeff-bezoss-phone-hacked-by-saudi-crown-prince https://www.theguardian.com/technology/2020/jan/21/amazon-bo... Both Apple and Google have tried to isolate media codecs more since, but apparently not enough.