Japan’s communications ministry has identified privacy risks in how Google, Meta, TikTok, and LINE Yahoo collect and utilize personal information through conversational AI, targeted ads, and tracking technologies, urging stricter monitoring and user protection measures.
- Meta and LINE Yahoo use AI conversations for targeted advertising
- Google and Meta incorporate personal data in AI training with opt-out controls
- Advertising opt-outs don’t stop data collection or cross-site tracking
What happened
Japan’s Ministry of Internal Affairs and Communications reviewed how Google, Meta, LINE Yahoo, and TikTok gather and use personal information, particularly focusing on conversational AI, targeted advertising, and tracking on third-party sites. The findings revealed varied practices across these companies in using AI conversations for advertising and in allowing users to manage their data.
Meta and LINE Yahoo notably use AI-generated conversations to tailor advertisements, with limited user control over these practices. In contrast, Google does not use conversational AI chats directly for targeted ads but shows search-related ads, while TikTok reported no use of AI conversations for ad personalization. The ministry emphasized the ongoing need to scrutinize delivery and personalization of ads through AI.
Why it matters
The report highlights significant privacy concerns with how major platforms use user data for AI training and advertising. Google and Meta integrate third-party information for improving AI models but offer differing opt-out mechanisms, ranging from account settings to separate controls outside AI interfaces. LINE Yahoo reported no use of third-party data for AI training.
All except TikTok use AI to create user profiles for ad optimization and sensitive information detection, demonstrating extensive automation in advertising targeting. The ministry also raised issues about consent validity when AI processes communications involving multiple individuals, underscoring the complexity of data privacy in AI applications.
What to watch next
Japan will continue to monitor how these companies handle personal data in conversational AI and advertising, focusing on user protections and transparency. The ministry urges companies to improve explanations for users, reinforce technical safeguards, and clarify the impact of opting out of targeted ads, as current opt-outs do not halt data collection or tracking effectively.
The regulatory spotlight also remains on consent mechanisms, particularly regarding sensitive AI features processing private communications. Observers should watch for potential policy updates or enforcement actions that could shape privacy standards for AI-driven advertising and data usage in Japan’s digital market.