Passwordless authentication is not one product or one sign-in method. It is a family of approaches that replace a typed password with an authenticator such as a passkey, a hardware security key, Windows Hello, or a phone-based sign-in method. For an organization, the identity platform, application integrations, device policies, enrollment, and account recovery matter just as much as the authenticator itself.
The seven examples below are deliberately not ranked: they mix authentication methods with services that manage or integrate those methods. Use them to identify a fit for your users and applications, then verify current compatibility and recovery behavior before deployment.
What passwordless authentication means
Passwordless authentication is a way to verify a user without asking them to enter a password as the sign-in credential. It describes a category, not a guarantee that an entire account or application has no password fallback. A service may offer passwordless sign-in for some users or situations while retaining a password recovery or fallback path.
A passkey is one type of passwordless credential built on FIDO standards. In the public-key model Microsoft describes, the private key stays on the user’s device and the service keeps the corresponding public key. The user unlocks the credential locally with a gesture such as a biometric, PIN, or pattern. Because the credential is associated with its intended website or app rather than being a reusable string to type, FIDO passkeys are described as phishing-resistant. That design reduces exposure to lookalike sign-in pages; it does not make every deployment, recovery process, or account immune to attack.
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- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
Other passwordless approaches include platform authentication, roaming security keys, certificates, phone sign-in, and temporary access mechanisms. The method answers how a user proves identity. A separate identity service or application platform may control enrollment, policy, single sign-on (SSO), device requirements, and recovery. Keeping those layers distinct makes comparisons more useful.
Seven passwordless methods and platform examples
These are examples supported by vendor and standards documentation, not a tested or ranked list of interchangeable products. The role label matters: a passkey or key is an authenticator; an identity platform coordinates access and policy.
1. Platform passkeys — an authenticator stored on a phone or computer
A platform passkey is stored on a user’s phone or computer and unlocked there, typically with a local biometric or PIN. It can make repeat sign-ins quick and avoids asking users to remember and type a password. FIDO Alliance and Microsoft describe the public-key and origin-bound properties that underpin passkeys’ phishing resistance.
Before adopting platform passkeys, decide how users will enroll additional devices and regain access after a lost, replaced, or unavailable device. Understand the platform’s credential synchronization and account recovery behavior rather than assuming all passkeys work the same way. The available documentation establishes the device-stored credential model, but does not compare synchronization implementations.
2. FIDO2 roaming security keys — a separate physical authenticator
A roaming FIDO2 security key is a physical authenticator that a user can connect to or present to a supported device. Duo’s guidance names Yubico and Feitian as examples of key makers. This can suit users who want a separate authenticator or organizations that need a physical-key option.
Rank #2
- POWERFUL SECURITY KEY: The YubiKey 5C NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5C NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5C NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
Compatibility is the practical decision point: check the identity service, operating system, browser, device ports, and any NFC requirements before choosing a key. A key is not a complete deployment by itself. Plan enrollment, replacement when a key is lost, and a recovery route that does not quietly undermine the sign-in policy. A supported FIDO2 key is an option, not a claim that any model works with every application.
3. Windows Hello — a Windows platform sign-in method
Microsoft lists Windows Hello among its passwordless deployment methods. For a Windows-centered organization, evaluate it alongside device management and identity controls rather than treating the local sign-in gesture as the entire access system. Microsoft’s guidance assigns roles to Entra ID for identity and SSO and Intune for device configuration and policy enforcement.
Check which devices and account scenarios your organization supports, how users enroll, and which managed resources accept the resulting sign-in. A local device sign-in experience and access to an organization’s cloud or business applications are related but distinct parts of the flow.
4. Microsoft Authenticator phone sign-in and passkey support — phone-based methods
Microsoft documents phone sign-in and Authenticator passkeys within its identity ecosystem. These methods can make a phone the user’s sign-in authenticator, but the relevant account and device scenarios depend on tenant policy and support. Confirm those conditions before promising a particular sign-in experience to employees or customers.
Also decide how the organization handles a phone that is lost, replaced, or temporarily unavailable. That recovery decision should be designed with the identity policy, not left as an informal help-desk workaround.
Rank #3
- POWERFUL SECURITY KEY: The YubiKey 5 NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5 NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5 NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
5. Microsoft Entra ID — an identity and access platform
Entra ID is a platform example rather than a single authenticator. Microsoft’s documentation covers FIDO2 passkeys and related passwordless methods in its identity environment. For FIDO2, Microsoft describes WebAuthn use in browsers and CTAP communication with authenticators. Those protocols help connect the browser or application to an authenticator; they do not remove the need to check whether a particular account, browser, device, and application flow is supported.
For an enterprise evaluation, consider how identity policy, SSO, managed devices, application access, and recovery fit together. Microsoft’s deployment guidance pairs Entra ID identity and SSO with Intune device configuration and policy enforcement. Consult current compatibility guidance and tenant settings for the exact scenarios you plan to deploy.
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6. Cisco Duo Passwordless — workforce access and application integration
Duo describes passwordless access for applications in its SSO catalog and for generic SAML or OIDC applications. Its documented authentication choices include WebAuthn passkeys and roaming FIDO2 authenticators. This makes it a service example for organizations evaluating how passwordless methods fit into application access, not a separate kind of passkey.
Pay particular attention to its documented password-fallback circumstances. A password fallback may be necessary in a specific flow, but it changes what “passwordless” means operationally. Map the fallback conditions, user experience, and recovery process for the applications you intend to connect.
7. Customer identity passkey services — Okta and Passage by 1Password
For a consumer-facing application, the question may be how to incorporate passkeys into the app’s own account sign-in rather than how to deploy employee access. Okta’s September 2025 datasheet describes its customer identity passkey offering as standards-based for mobile apps and browsers. 1Password describes Passage as a way to integrate passwordless sign-in into customer-facing applications.
Rank #4
- POWERFUL SECURITY KEY: The Security Key NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key NFC via USB-A and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
These are developer and service examples, not a feature-by-feature comparison. Evaluate the integration model, supported app and browser scenarios, enrollment experience, and account recovery against your own product requirements. The available material does not establish comparable feature sets, pricing, or an independent performance ranking.
How to choose an approach for your application or organization
Start with the users and access flow, then compare the authenticator and the service that manages it. A consumer app and a managed workforce have different enrollment, device, integration, and recovery constraints.
- Identify who signs in. Specify whether the users are employees accessing managed work resources, consumers using your application, or both. This determines whether you are choosing an enterprise identity and SSO arrangement, a customer identity integration, an authenticator, or a combination.
- Choose the authenticator category. Compare synced or device-stored passkeys, platform authenticators, phone-based methods, certificates, and physical FIDO2 keys against user needs and device availability. Do not assume that all methods share the same portability or recovery behavior.
- List where sign-in must work. Write down the operating systems, browsers, mobile apps, shared devices, and account flows that matter. Check provider compatibility documentation for those exact scenarios before settling on a method or a security key.
- Map the application integration. Verify whether your applications use an identity provider, SSO catalog, SAML, OIDC, or an app-specific sign-in integration. Confirm the supported path for each important application rather than inferring support from a general product description.
- Assign policy and device responsibilities. Decide which system enforces access policy and whether device configuration or management is required. Microsoft describes Entra ID and Intune as complementary parts of its approach; verify the corresponding controls for any platform you evaluate.
- Design enrollment, loss, and fallback before rollout. Document how a user gets the first credential, adds or changes devices, and regains access if an authenticator is unavailable. Check whether a password can still appear in a fallback flow, and determine who can authorize recovery.
Are passkeys phishing-resistant, and what does that protect?
Passkeys use origin-bound public-key credentials: the credential is associated with the intended website or app, rather than being a password that a user can reuse by typing it into a convincing imitation. That is why FIDO Alliance and Microsoft describe passkeys as phishing-resistant. The claim is about the credential design and its resistance to a common phishing route, not a blanket security certification for every account.
Security still depends on the surrounding deployment. Account recovery, administrator access, application configuration, device security, and any fallback route remain relevant. Review the whole sign-in and recovery journey, not only the moment when a passkey is used.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Do you need a hardware security key?
No single authenticator fits every user or device environment. A roaming FIDO2 key is worth considering if users need a separate physical authenticator or if your policy calls for one. It is not automatically required to use passwordless authentication, and a key only helps in the intended flow if the service, device, browser, and connector or NFC path support it. Confirm compatibility before selecting a model and plan a replacement and recovery process.
Best Value
- FIDO2 & Passkey Ready: Business-ready and FIDO2 L1 certified. This key is supported by major management suites and is ideal for both individual and enterprise deployment. Works seamlessly with Gmail, Facebook, GitHub, Dropbox, Coinbase, and more.
- Universal Connectivity (USB-A ): Features a built-in USB-A connector—simply unfold the key and plug it into your compatible PC or laptop for seamless authentication on the go.
- Dedicated Manager App: Use the Thetis Manager App for the initial hardware PIN setup. Setting the PIN on the device first ensures a smooth registration process. Once the PIN is configured, you can begin registering the key across your favorite FIDO2-compatible online services.
- Ultra-Durable & Portable: Featuring a rotating metal cover, this key is water, crush, and tamper-resistant. It fits easily on a keychain and requires no batteries or network connectivity.
- Check FIDO2 compatibility before purchase - Known limitations: ID Austria is not supported (requires FIDO2 Level 2). Windows Hello login only works with Windows Enterprise editions that support Entra ID, and NFC is NOT supported.
Deployment pitfalls and troubleshooting
- A passkey or key is not offered at sign-in: Check whether that account, application, browser, device, and tenant policy support the method. Verify enrollment and the provider’s current compatibility guidance.
- A security key cannot be used: Check the service’s supported FIDO2 methods and the device’s connector or NFC capability. Test the actual browser and operating-system combination used by the target users.
- A user is still asked for a password: Determine whether the flow is a documented fallback, whether the user is enrolled, or whether a policy or application integration routes the user to password authentication. Duo documents cases where password fallback may occur.
- A user loses a phone, computer, or key: Follow the recovery and temporary-access process defined by the organization. If no approved recovery path exists, pause broad rollout until one is documented and assigned to an owner.
- A method works for one app but not another: Validate each app’s SSO or protocol integration independently. A method supported by an identity platform does not establish that every connected application supports the same sign-in flow.
Costs, performance, and reliability considerations
The official material summarized here does not establish current pricing, licensing, geographic availability, or a comparative performance benchmark for these examples. Obtain current terms from the provider for the edition and region you plan to use rather than extrapolating from a method name.
For operational planning, measure the steps your own users will encounter: enrollment completion, sign-in success on supported devices, help-desk recovery volume, and application coverage. Test both routine access and exception cases such as a lost authenticator or an app that falls back to a password. Those checks are more useful to a deployment decision than assuming all passwordless methods behave alike.
A separate tool for screenshot workflows
ScreenshotNeo is not a passwordless authentication method or identity platform. It is a website screenshot API and MCP server for developers, so it is relevant only if your team also needs screenshots of web pages or app flows; it does not enroll users, authenticate them, or replace an identity provider. Its website describes one-call captures and an MCP server for AI agents.
For a separate screenshot task, this cURL request saves a WebP capture; see the ScreenshotNeo API documentation for request options:
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Quick Recap
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo removes cookie/consent banners, newsletter popups, and chat widgets before capture, with each step optional. Bot checks, blank pages, and failed loads are not billed; an MCP server provides screenshot tools for AI agents. The Free plan includes 1,000 screenshots a month without a card; paid plans start at $5 for 3,000. These are screenshot-service details, not authentication features. Sign up for ScreenshotNeo’s free plan.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
