Man charged with AI-generated fake Shizuoka Shimbun image posted on X
A 48-year-old company employee in Hamamatsu used generative AI to create a fake image of a Shizuoka Shimbun newspaper front page with false headlines about a Tokaido Shinkansen stop and posted it on X as an April Fool's joke, prompting inquiries that disrupted the newspaper's operations. Police filed charges for obstruction of business through fraud.
What happened
On April 1, 2026, a 48-year-old company employee from Hamamatsu used generative AI to alter an image of the Shizuoka Shimbun evening edition front page, changing headlines to claim that the Tokaido Shinkansen 'Nozomi' train would stop at Hamamatsu Station and that JR East and Shizuoka Prefecture had agreed to this, then posted the image on X (formerly Twitter).
The Shizuoka Prefectural Police discovered the post through cyber patrol monitoring. The man stated he posted it as an April Fool's Day joke. The Shizuoka Shimbun's evening edition had ceased publication in 2023.
Reported impact
The false image led to inquiries directed at Shizuoka Shimbun, disrupting the newspaper's business operations. The Shizuoka Shimbun stated on its official website that the content was not related to the company and that the claims were false.
Governance controls
The Shizuoka Prefectural Police filed a document referral on September 17, 2026, charging the man with obstruction of business through fraud. The Shizuoka Shimbun stated it recognized that appropriate criminal proceedings would follow.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.