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Phishing for Passkeys: An Analysis of WebAuthn and CTAP (god2025)

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Manage episode 521384712 series 2475293
Content provided by CCC media team. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by CCC media team or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
WebAuthn was supposed to replace swords on the web: uniform, secure, manageable authentication for everyone! One of its unique selling points was supposed to be the impossibility of phishing attacks. When passkeys were introduced, some of WebAuthn's security principles were watered down in order to achieve some usability improvements and thus reach more widespread adoption. This presentation discusses the security of passkeys against phishing attacks. It explains the possibilities for an attacker to gain access to accounts secured with passkeys using spear phishing, and what conditions must be met for this to happen. It also practically demonstrates such an attack and discusses countermeasures. Participants will learn which WebAuthn security principles still apply to passkeys and which do not. They will learn why passkeys are no longer completely phishing-proof and how they can evaluate this consideration for their own use of passkeys. Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://c3voc.de
  continue reading

1984 episodes

Artwork
iconShare
 
Manage episode 521384712 series 2475293
Content provided by CCC media team. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by CCC media team or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
WebAuthn was supposed to replace swords on the web: uniform, secure, manageable authentication for everyone! One of its unique selling points was supposed to be the impossibility of phishing attacks. When passkeys were introduced, some of WebAuthn's security principles were watered down in order to achieve some usability improvements and thus reach more widespread adoption. This presentation discusses the security of passkeys against phishing attacks. It explains the possibilities for an attacker to gain access to accounts secured with passkeys using spear phishing, and what conditions must be met for this to happen. It also practically demonstrates such an attack and discusses countermeasures. Participants will learn which WebAuthn security principles still apply to passkeys and which do not. They will learn why passkeys are no longer completely phishing-proof and how they can evaluate this consideration for their own use of passkeys. Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://c3voc.de
  continue reading

1984 episodes

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