Incident 299: Japanese Porn Depixelated by Man using Deepfake

Description: A man allegedly unblurred, using deepfake technology, pixelated pornographic images and videos of pornographic actors, which violated Japan’s obscenity law requiring images of genitalia to be obscured.


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Alleged: unknown developed an AI system deployed by Masayuki Nakamoto, which harmed Japanese pornographic actors.

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Khoa Lam

Incident Reports

Man Arrested for Uncensoring Japanese Porn With AI in First Deepfake Case · 2021

Japanese police on Monday arrested a 43-year-old man for using artificial intelligence to effectively unblur pixelated porn videos, in the first criminal case in the country involving the exploitative use of the powerful technology.



A "variant" is an incident that shares the same causative factors, produces similar harms, and involves the same intelligent systems as a known AI incident. Rather than index variants as entirely separate incidents, we list variations of incidents under the first similar incident submitted to the database. Unlike other submission types to the incident database, variants are not required to have reporting in evidence external to the Incident Database. Learn more from the research paper.