A passkey is a digital key that enables logging into websites and apps without a password. Instead of remembering a password, visitors use their fingerprint, facial recognition, or PIN on their own device. For entrepreneurs and website administrators, this means fewer stolen accounts due to phishing, fewer support requests about “forgotten passwords,” and a simpler, more secure login experience for customers.
What exactly is a passkey?
A passkey works based on a cryptographic key pair: a public key stored at the website and a private key that never leaves the user’s device. When logging in, the device proves it possesses the corresponding private key, without sharing it. The user unlocks this process with biometrics (fingerprint or face) or a device PIN. Because no shared secret travels over the internet anymore, there is simply nothing left to intercept or guess.
Passkeys are based on open standards (WebAuthn/FIDO2) and now work in most modern browsers and operating systems. They can be synced via a password manager or device cloud, allowing a user to use the same passkey across multiple devices.
Why are passkeys safer than passwords?
Passwords are the weakest point in most security problems. Users reuse them, choose ones that are too simple, or get phished through fake login pages. Passkeys structurally solve these problems:
- Phishing-resistant: a passkey only works on the genuine website it was created for; a fake site can’t do anything with it.
- No reuse: each passkey is unique per service, so a data breach at one website doesn’t affect other accounts.
- Nothing to remember: users can’t choose a weak password, because there’s no password at all.
- Less account takeover: without a shared secret, there’s no password to steal in the event of a server breach.
For website administrators, this means less risk of compromised customer accounts and less time spent dealing with hacked logins.
What does this mean for your website or webshop?
If you have a website with a customer portal, a webshop with accounts, or a membership area, choosing passkeys directly affects user convenience and security. Customers log in faster, drop off less often due to forgotten passwords, and face less risk of account theft. This translates into fewer support tickets and a more trustworthy image.
It’s important to note that passkeys complement, rather than automatically replace, your existing login system. Most platforms offer passkeys alongside passwords, so users can switch over at their own pace. Email security also remains relevant: make sure your business email is well secured, since email is often still the key to password recovery and account recovery for other services.
How do you get started with passkeys?
Implementing passkeys requires changes to your website’s or webshop’s login functionality. If you use standard software such as WordPress, WooCommerce, or another CMS, check whether a maintained plugin or module is available that supports WebAuthn/FIDO2. If you build custom solutions, supporting passkeys with current browser standards is quite achievable.
Assess your login system
Map out which CMS, framework, or shop platform you use and whether passkey support already exists.
Choose a proven solution
Use a maintained plugin or library instead of building cryptography yourself; this prevents security flaws.
Ensure a valid SSL certificate
WebAuthn only works over a secure connection. Verify that your website has a valid SSL certificate, for example via Plesk in your hosting environment.
Offer passkeys as a choice
Let users choose between a password and a passkey themselves, so the transition goes smoothly.
Test on multiple devices
Check the login flow on different browsers, phones, and computers before going live.
A stable, fast hosting environment with up-to-date software is the foundation for any modern security feature. If you’re considering switching to a provider that supports this smoothly, take a look at switching to Tandata or check out the options for web hosting with current PHP versions and free SSL.
Frequently Asked Questions
Do I need to abolish passwords entirely?
No, most websites offer passkeys alongside passwords. Users can choose which method to use themselves.
Do passkeys work on every device?
Passkeys work on most modern browsers, phones, and computers. Older devices or browsers may not offer support.
What happens if someone loses their phone?
Because passkeys are often synced via an account or password manager, users can regain access on a new device after verification.
Is a passkey the same as two-factor authentication?
Not quite. A passkey combines possession (the device) with biometrics or a PIN in a single step, whereas two-factor authentication usually combines a separate password with an additional code.
Do I need special hosting for passkeys?
Mainly, you need a valid SSL certificate and up-to-date software. A hosting environment with NVMe storage and recent PHP versions makes implementation easier and faster.
Conclusion
Passkeys make logging in safer and more user-friendly by replacing passwords with biometrics and device verification. For entrepreneurs, this means less phishing risk, fewer support requests, and a more modern image. Start by offering passkeys alongside existing passwords, ensure you have a valid SSL certificate, and thoroughly test the login flow before going live.