Amid questions over Japan’s cybersecurity, just how safe is the My Number system?

Summary

Japan faces growing security concerns over its My Number system following widespread corporate data breaches across the country. In response, the Digital Agency argues that decentralized data storage across multiple organizations and adherence to international security standards prevent large-scale compromises in a single incident.

Key Takeaways

1. The system uses a 12-digit number as a digital ID for residents, while the My Number card provides access to a range of government services involving highly sensitive personal information, including tax, pensions, medical history and family registry records.
2. The Digital Agency maintains that the system is secure because data is decentralized and stored across multiple locations, including local governments and businesses.
3. With companies reporting new data breaches almost daily in recent weeks — exposing millions of customers’ personal records in some cases — concerns are growing over whether it is only a matter of time before information held under Japan’s My Number system is compromised.

Statement Breakdown

• Claimed Facts: 75% of statements the article presents as facts
• Opinions: 25% of statements classified as editorial or subjective
• Claims: 0% of statements surfaced for additional reader evaluation

Credibility & Bias Reasoning

Credibility assessment: The report grounds its technical summary on official positions stated by the Digital Agency. It directly explains the architectural structure and regulatory standards governing the system. Sourcing relies on this single governmental perspective without citing independent cybersecurity specialists.

Bias assessment: Institutional Reassurance. The framing presents public cybersecurity anxiety before detailing official state defenses. Most of the reporting space relays the government agency perspective. Outside technical critics are not quoted directly to evaluate the official arguments.

Note: Relies on official positions from the Digital Agency regarding cybersecurity architecture.

Credibility flag: Official Statements

Claimed Facts (1)

• It asserts the system meets an existing technical certification standard.

Opinions (1)

• It relays the agency's predictive judgment regarding systemic resilience against cyberattacks.

Key Sources

• Digital Agency — Japanese government agency overseeing digital infrastructure
• Maddie Baker — Staff writer for The Japan Times