Passkey Adoption Metrics.
Passkey adoption metrics are the measures used to track a passkey rollout: eligibility (accounts that can create one), enrollment (accounts that have one) and sign-in share (successful sign-ins that use one).
A passkey rollout has three numbers that move separately, and teams that track only one tend to misread progress. The FIDO Passkey Index 2026 uses them in sequence: how many accounts can get a passkey, how many have one, and how many sign-ins actually use one. Its full report defines the scope of each, and those definitions are worth copying into your own dashboards.
Definitions, as the Index uses them.
- Eligibility: share of active accounts that are eligible for passkeys. Where it is below 100%, participants described it as a deliberate scoping choice, such as channel sequencing or device-quality gating.
- Enrollment rate: share of eligible accounts with a passkey enrolled. Multiply by eligibility to get enrollment as a share of all accounts.
- Passkey sign-in share: share of successful sign-ins that use a passkey, including re-authentication, excluding account recovery.
- Sign-in success rate: share of sign-in attempts that succeed, compared by method.
Our reading. The number to manage is the gap between enrollment and sign-in share, not either alone. A user who enrolled but is routed to a password first is a security cost with no benefit. That points at flow design: conditional UI, passkey-first prompts for enrolled users, and removing weaker fallbacks over time. The passkey maturity tiers list the implementation checks that move these numbers, and the ROI of passwordless covers how to tie them to cost.
Common questions
What is passkey sign-in share?
It is the percentage of successful sign-ins that use a passkey. In the FIDO Passkey Index it includes re-authentication and excludes account recovery. The 2026 Index reports 36% on average across 12 participants, up from 26% in the 2025 Index.
What is the difference between passkey eligibility and enrollment?
Eligibility is the share of active accounts that are able to create a passkey, for example because the user's device and channel support it. Enrollment is the share of eligible accounts that actually have one. The 2026 FIDO Passkey Index reports 90% eligibility and 42% enrollment among eligible accounts.
Why does the gap between enrollment and sign-in share matter?
Users who have a passkey but still sign in another way get none of the phishing or success-rate benefit. The 2026 Index found 8 of 10 participants still had sign-in share below enrollment, and two participants said their flow shows a password or OTP before the passkey. One estimated that offering the passkey first would roughly double its passkey sign-in share.
Can I compare my numbers directly to the Passkey Index?
Only loosely. The Index averages 15 consumer services without weighting, not every participant answered every question, and the participant group changed from 2025. Use the definitions to measure yourself consistently, and treat the averages as context, not a target.
Related terms
In the guides
Passkey and Fallback Capability Matrix: Web, Native Apps, Managed Recovery
Which CIAM vendors document passkeys on web and in native iOS and Android apps, what fallback ships in the product, and who actually sends the message. Checked 18 September 2026.
Passkey Orchestration Ranking 2026: Who Actually Gets Adoption
WebAuthn support is table stakes. Orchestration is not. A 2026 ranking of which CIAM vendors get passkey adoption above a 5–10% stall.
Passkeys Explained: How Synced Credentials Replace Passwords
Passkeys are the user-facing brand for synced WebAuthn credentials. A practical explanation of how they work, sync, recovery, and the deployment patterns that make adoption real.
The ROI of Passwordless Authentication: A CFO-Ready Business Case
Passwordless authentication pays back through three measurable lines: help-desk ticket reduction, breach-probability reduction, and conversion lift. The numbers are unflattering to passwords.