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Please, please, please stop using passkeys for encrypting user data

sourceSimon Willison
calendar_todayFebruary 27, 2026
schedule2 min read
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EXECUTIVE SUMMARY

The Case Against Passkeys: A Call for Change in User Data Encryption

Summary

The article advocates against the use of passkeys for encrypting user data, highlighting the risks associated with users losing their passkeys and the irreversible encryption of their data. Tim Cappalli urges the identity industry to reconsider this practice and focus on passkeys as secure authentication methods instead.

Key Points

  • Users frequently lose their passkeys, leading to data inaccessibility.
  • Passkeys can irreversibly encrypt user data, making recovery impossible.
  • Tim Cappalli is a prominent voice urging the identity industry to stop promoting passkeys for data encryption.
  • The article emphasizes the importance of usability alongside security in identity management.
  • Passkeys are suggested to be used primarily as phishing-resistant authentication credentials.
  • The discussion is part of a broader conversation on security and usability in technology.

Analysis

The article raises critical concerns about the usability of passkeys in the context of user data encryption. It highlights a significant gap in understanding among users regarding the implications of losing their passkeys, which could lead to permanent data loss. This issue underscores the need for more user-friendly solutions in identity management.

Conclusion

IT professionals should reconsider the use of passkeys for encrypting user data and explore alternative methods that balance security with user accessibility. Promoting passkeys solely as authentication tools may enhance security without compromising data recoverability.