Pixelizing an image is not a guarantee of confidentiality

Level 2 Jeff proposed a challenge on his YouTube channel: depixelizing the images of a video. At the key: $50. The image was highly pixelized making any identification impossible. Except that it took only a few hours to succeed in the challenge! KokuToru published on his GitHub the methods used. What is interesting is the different (and complementary) approach between the two hacker solutions. The first is a "attack" by brutal force. The most di…