Can a 45-Million-Person ID Carry "Delegation"? Korea's Mobile ID Confronts a 4.4% Adoption Reality

What happened

The "2026 Blockchain & AI Hackathon," co-organized by RaonSecure and GDIN, concluded with a final in Yeouido, Seoul, on September 30. 318 teams entered, up more than 50% year on year. The theme was building services on national mobile IDs, such as the mobile resident card and mobile driver's license, to verify a person's identity, qualifications and authority.

The winning team, "Pascal," proposed using mobile IDs to verify the permissions and consent/delegation relationships among a person, their guardian and a social worker, while recording each step of a welfare service on a blockchain. Many other entries also addressed "who may act for whom": delegated welfare applications for the elderly, independent signatures for people with disabilities, video authenticity proofs and AI-content provenance. The ministry is running a public "2026 Mobile ID Idea Contest" from October 1 to 30.

The numbers behind the enthusiasm

On October 1, a member of the National Assembly's Public Administration Committee raised concerns based on ministry data. Only about 1.97 million people held the IC resident card required for mobile ID registration as of end-August, just 4.4% of roughly 45.01 million eligible citizens.

The age gap is stark. Teenagers, whose first card at 17 is free, show a 47.0% issuance rate, while those in their 60s are at 1.8%, 70s at 0.9% and 80 and older at 0.3%. At the current pace of about 120,000 cards a month, nationwide coverage would take roughly 30 years. The ministry also admitted it does not track usage or verification counts, despite spending KRW 50.6 billion on the system.

The structural problem: the people who need it most are not covered

The hackathon rewarded "delegation" use cases such as elderly welfare and proxy applications. Yet the oldest citizens, who would benefit most, are the least likely to hold IC cards. Recording delegation on top of DIDs works technically, but physical issuance has become the biggest barrier to real-world deployment.

The missing usage statistics also mean the government cannot justify the policy value of its blockchain-based ID. Tamper-proof verification records are a core strength of distributed ledgers, yet those records are not being used to evaluate the program.

Implications for Japan

Japan is also moving My Number Card functions onto smartphones. Korea's case shows that "who can get the ID onto a phone" (issuance) and "what it is used for" (use cases) are separate problems. Proving proxy and delegation authority for family members, caregivers and professionals, not just identity, has especially large demand in aging Japan. Delivering it, however, requires designing ID distribution and usage logging together.

[Business Development Insights]

1. The next demand for national IDs lies in proving delegation and proxy authority, not identity. Companies that can design verifiable credentials for caregiving, welfare and inheritance, where someone acts on another's behalf, will gain first-mover advantage.
2. ID businesses succeed or fail on issuance channels more than technology. Service designs that build in physical onboarding support for older users (counters, home visits, family-assisted registration) will determine adoption.
3. Usage and verification logs should be designed as management KPIs from day one. ID infrastructure that cannot produce statistics fails to justify its budget, so the auditability of distributed ledgers should be repurposed into operating metrics.

[Sources]

• ZDNet Korea: https://zdnet.co.kr/view/?no=20261003214039
• Newstap: https://www.newstap.co.kr/news/articleView.html?idxno=335224
• Asia Tongsin: https://www.newsasia.kr/news/article.html?no=440066
• Dailian: https://www.dailian.co.kr/news/view/1696608/
• Kukinews: https://www.kukinews.com/article/view/kuk202610010143
• Government24: https://www.gov.kr/mw/AA020InfoCappView.do?CappBizCD=17410000052