Taihei Bito from The Yomiuri Shimbun:
The work consisted of simply printing personal information data on both sides of a white card with a fake IC chip embedded. She would often make 60 cards in a day, which she would then send to specified domestic addresses. For one day’s work, she would receive electronic money equivalent to about ¥12,000 to ¥16,000.
The MPD investigated, suspecting that the person giving instructions was in China. On May 15, they arrested two Chinese nationals on charges including suspicion of forging sealed official documents for allegedly making fake My Number cards at the request of the same group. They believe the forged cards may have been used for purposes such as setting up mobile phone contracts.
The whole point of a digital ID is that the digital bit can prove authenticity of the card itself. The fact that most businesses and banks rely only on the visual information printed on a card without certifying the digital certificate renders the whole enterprise pointless. While the counterfeiting of these cards is certainly a problem, the real issue is that people don't seem to understand or care on how to use this IDs for their intended purpose.