Passkeys vs. Local Biometrics & Testing Passkey Implementations - This Week at Passkeys
Passkeys vs. Local Biometrics in Native Apps - Testing Passkey Implementations
What a Week!
☝️ Native Apps: Passkeys vs. Local Biometrics
🧪 Testing Passkey Implementations (Enterprise Passkeys Guide 5)
Here are this week’s topics that you don’t wanna miss out on!
Questions from passkey integration projects
See what others have asked about integrating passkeys. Our goal is to demystify key aspects of passkeys and help more organizations adopt them.
#3 What does it mean to “prevent multiple passkeys for one account”?
If a user has already created a passkey for an account on a particular device or authenticator, you may want to disallow them from creating additional, duplicate passkeys for that same account on the same authenticator. This avoids confusion (e.g. “Why do I have five entries for the same account on my phone?”) and ensures cleaner credential management.
Passkeys vs. Local Biometrics: Why you need both
Face ID is great. So is Touch ID. But here’s the thing - local biometrics can’t replace passkeys and passkeys can’t replace biometrics. They do totally different jobs. This blog post breaks it down: passkeys are for remote authentication (like logging into your account from a new device), while biometrics are for ongoing access (like unlocking your banking app). It also shows how combining both gives you the best of both worlds: phishing-resistance, device-level security and a seamless login flow. Curious when to use what - and how?
How to test Passkey Implementations (without losing your Mind)
Rolling out passkeys in an enterprise app is only half the job - now you’ve got to make sure the thing actually works. This blog post breaks down everything you need to test before going live: from user acceptance testing and automated flows to performance, security and passkey intelligence testing. You’ll learn what devices and tools to use, how to test cross-device logins and even how to handle flaky biometric inputs and slow networks. It’s like a QA checklist for passkeys - only better.
The best part? You’ll discover what most companies forget to test...
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