Preliminary research

The State of Passkeys: Studying the Adoption and Security of Passkeys on the Web

Louis Jannett, Andreas Mayer, Maximilian Westers, Vladislav Mladenov, Christian Mainka and Jörg Schwenk · USENIX

AI-collected research leads through 22 September 2026, including targeted additions between broader sweeps. Unranked, incomplete, not community-vetted, and subject to change.

PASSKEYS-RADAR tracks passkey deployment since 2021 from community directories, Tranco 1M, CrUX 18M and archived pages, reaching 872 passkey-enabled relying parties. PASSKEYS-ATTACKER then tests live implementations with 15 attack types and 28 detection methods: of 103 relying parties analysed, 18 were vulnerable to critical-severity threats and 53 to high-severity ones.

Record

Researcher

Louis Jannett, Andreas Mayer, Maximilian Westers, Vladislav Mladenov, Christian Mainka and Jörg Schwenk

Published by

USENIX

Topic

Identity

In the archive

• Collected in the 2026 preliminary research sweep

Related sources

• The State of Passkeys: Studying the Adoption and Security of Passkeys on the Web (Paper) Whitepaper
• The State of Passkeys: research artifacts Repository
• Passkeys.Tools

Tags

• passkeys
• webauthn
• identity
• measurement-study
• large-scale-scan
• auth-bypass
• owasp-a01-2021
• owasp-a07-2021

This page is the archive's own catalogue record. The research is the work of Louis Jannett, Andreas Mayer, Maximilian Westers, Vladislav Mladenov, Christian Mainka and Jörg Schwenk, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 19 August 2026.