Japan Faces AI-Driven Chinese Disinformation

Japan’s Ministry of Defense released its 2026 Defense White Paper, drawing attention to China’s rapid advances in artificial intelligence and their implications for regional security. The paper notes that generative AI is lowering the barriers for Chinese information operations aimed at Japanese society, a threat that may outpace conventional military concerns.

The White Paper’s details can be found in the stats section.

AI Reduces Linguistic Barriers

AI is eroding the linguistic and cultural obstacles that once made Chinese disinformation obvious. Content that previously contained grammatical mistakes, awkward translations, or unnatural phrasing is now harder for ordinary users to spot. Generative models can correct grammar, adjust tone, and produce images that match Japanese cultural norms within minutes, making the content appear native.

Evidence of Growing Disinformation

Since Prime Minister Takaichi Sanae linked a Taiwan contingency to Japan’s security in late 2025, disinformation targeting Japanese political figures has increased in both volume and sophistication. A special report by Nikkei in February found that more than 400 China-linked social media accounts spread negative content about Takaichi during Japan’s House of Representatives election. Separately, the Yomiuri Shimbun, citing research by Japan Nexus Intelligence, reported that under a different set of criteria, thousands of coordinated accounts on X were involved in sharing and amplifying related content.

The narratives linked Japan’s defense expansion to concerns over social welfare, arguing that military growth was costing ordinary people.

Localized Influence Networks

The Sankei Shimbun has tracked PAPERWALL, a China-linked information network that includes 15 websites masquerading as Japanese news outlets. The continued operation of these sites, and the broader ecosystem surrounding them, indicates an increasingly localized approach to influence operations. Improvements in language, imagery, and the appearance of fake news sites are making it more difficult for ordinary readers to distinguish legitimate sources from fabricated ones. The network’s activities are documented in the fixtures section.

OpenAI’s February report revealed that China-linked actors used ChatGPT to aid in planning an online influence campaign targeting Takaichi. The actors appear willing to incorporate different AI systems whenever those tools make their operations more effective.

Japan’s Strategic Response

Japan should move beyond a defensive model that waits for false information to appear and then fact-checks it. Instead, it must strengthen society’s ability to recognize coordinated influence operations before they gain traction. Information-security cooperation between Japan and Taiwan should become more institutionalized. The two sides could deepen exchanges on identifying coordinated accounts, detecting deepfakes, analyzing foreign influence networks, and monitoring information environments during major disasters, elections, or political crises. These efforts are outlined in the squad section.

AI is making Chinese information operations cheaper, faster, and easier to deploy across language barriers, but it still cannot fully replicate the cultural knowledge and lived experience embedded in a society. Japan therefore needs to build an information environment in which foreign influence operations are less likely to succeed, rather than attempting to block every piece of false information.