Navigating Passkey Adoption Challenges - Mercari's Journey to Effectively Mitigate Phishing Risks
summary
Mercari reports concrete results from a two year passkey rollout: backend changes cut SMS costs and reduce phishing exposure, with an early win of 30% SMS cost reduction and the crypto service seeing zero phishing victims since launch. Adoption sits at 6.26M passkey users (~28% MAU), but registration flow conversion after clicking the passkey prompt ranges 50–76%, and a credit card flow yields ~30% completion. Deployment uses targeted enforcement by user segment and feature, UI prompts, promotional content, and plans for conditional automated registration and passkey-first UX.
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chapters (12)
- 0:00Introduction to passkey adoption
- 2:48Motivations for passkey adoption
- 4:57Passkey benefits and limitations
- 7:10Challenges of passkey enforcement
- 10:45Limiting passkey enforcement scope
- 13:56Protecting specific features with passkeys
- 15:40Gradual passkey enforcement strategy
- 16:01Passkey enforcement results
- 18:13Password login ban for passkey users
- 20:00Passkey registration promotion methods
- 22:32Next challenges and future plans
- 23:38Summary and conclusion
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