Passwords have protected business systems for decades, but they come with two persistent challenges. First, they are vulnerable to theft through phishing attacks, password reuse, and compromised credentials. Second, they create friction for users and IT teams alike, leading to forgotten passwords, account lockouts, and a constant stream of reset requests.
Passkeys offer a modern alternative. Designed to improve both security and user experience, they allow employees to sign in without entering a password. Instead, authentication is approved on a trusted device using biometrics such as Face ID, a fingerprint scan, or a device PIN.
In this guide, we’ll explain what passkeys are, how they work, why passwordless authentication is rapidly gaining adoption, and how organisations can implement it successfully.
What Is a Passkey?
A passkey is a secure replacement for traditional passwords that enables users to sign in without remembering or entering a secret phrase.
Rather than relying on a shared password, passkeys use cryptographic key pairs:
- A private key remains securely stored on the user’s device.
- A public key is stored by the website, application, or identity platform.
When a user signs in, their device proves possession of the private key without ever revealing it. Because the private key never leaves the device, passkeys are considered highly resistant to phishing attacks and credential theft.
How Passkeys Differ from Passwords
With traditional passwords, users enter a shared secret into a website or application. If attackers trick them into entering that password on a fake site—or if the password is exposed in a data breach—it can often be reused to gain unauthorised access.
Passkeys work differently.
There is no password to type, remember, or accidentally disclose. Instead, the user’s device authenticates itself, while the user confirms their identity through biometrics or a PIN.
A useful comparison is mobile banking. When approving a payment using Face ID or a fingerprint scan, you’re not re-entering credentials every time. You’re simply confirming your identity on a trusted device. Passkeys bring a similar experience to workplace authentication.
What Passkeys Are Not
Passkeys are often confused with other authentication methods. They are not:
- SMS verification codes
- Security questions
- One-time passwords (OTPs)
- Traditional password managers
While password managers may help store and synchronise passkeys across devices, passkeys themselves are based on modern cryptographic authentication rather than stored passwords.
Why Passwordless Authentication Is Becoming the New Standard
The move towards passwordless authentication isn’t happening because passwords no longer work. It’s happening because the costs and risks associated with passwords continue to increase.
Rising Phishing Threats
Phishing attacks have become more sophisticated, targeted, and automated. Attackers regularly impersonate trusted services, colleagues, suppliers, and business systems in an attempt to capture user credentials.
At the same time, credential-stuffing attacks use leaked usernames and passwords from previous breaches to access business applications where passwords have been reused.
For SMBs with limited internal security resources, preventing credential theft is often more effective than trying to detect and respond to every attack.
Better User Experience
Managing dozens of passwords is frustrating for employees. As a result, many resort to practices such as:
- Reusing passwords across accounts
- Writing passwords down
- Saving credentials insecurely
- Choosing weak passwords that are easier to remember
Passwordless authentication removes much of this friction, delivering a faster and simpler sign-in experience.
Industry-Wide Adoption
Passkeys are now supported across major operating systems, browsers, and identity platforms. As businesses modernise their identity strategies, passwordless authentication is becoming a practical and scalable option rather than a future aspiration.
Solutions such as Microsoft Entra ID enable organisations to integrate passkeys into a broader identity and access management framework.
Key Benefits of Passkeys for SMBs
For small and medium-sized businesses, passkeys deliver benefits beyond stronger security.
Enhanced Protection Against Credential Theft
Because users never enter a password, attackers have far fewer opportunities to steal credentials through phishing campaigns or fake login pages.
While passkeys do not eliminate cyber threats altogether, they significantly reduce the risk of account compromise through stolen passwords.
Faster Sign-In Experience
Signing in with a fingerprint, facial recognition, or device approval is often much quicker than entering a complex password and completing additional verification steps.
Those time savings add up across teams that access multiple business applications every day.
Reduced IT Support Costs
Password resets can consume considerable IT resources.
By reducing dependency on passwords, organisations can lower the number of:
- Forgotten password requests
- Account lockouts
- Recovery-related support tickets
This frees up internal teams to focus on higher-value activities.
Stronger Identity Foundations
Passkeys complement modern security controls such as:
- Multi-factor authentication (MFA)
- Conditional access policies
- Device trust models
- Zero Trust security frameworks
For growing organisations, they provide a strong foundation for a more mature identity and access management strategy.
How to Implement Passkeys in Your Organisation
Successful implementation begins with understanding your existing identity environment and planning a phased rollout.
Start with a Readiness Assessment
Consider the following questions:
- Which identity platform do you currently use?
- Which applications are connected to that platform?
- What devices do employees use?
- Which applications support modern authentication standards?
- Which teams would be suitable for a pilot programme?
Answering these questions will help identify potential challenges before deployment.
Pilot Before Full Deployment
Rather than introducing passkeys organisation-wide immediately, start with a small group of users.
A pilot programme allows you to:
- Identify usability concerns
- Test support processes
- Gather employee feedback
- Refine onboarding materials
Once the pilot proves successful, deployment can be expanded in phases.
Establish Recovery Processes
Account recovery is a critical part of any passwordless strategy.
Organisations should define procedures for situations such as:
- Lost or stolen devices
- Replacement phones or laptops
- Role changes
- Employee departures
Having clear governance prevents security gaps and minimises disruption.
Integrate with Your Identity Strategy
Many organisations use Microsoft Entra ID to manage passwordless authentication within Microsoft 365 environments.
However, passkeys should not be viewed as a standalone technology. They are most effective when implemented as part of a broader identity and access management strategy that includes governance, device management, and security policies.
Supporting Employee Adoption
Technology alone does not guarantee success. Employee understanding and acceptance are equally important.
Explain the Benefits
Employees are more likely to embrace change when they understand why it matters.
Focus on practical advantages:
- Easier sign-ins
- Less password fatigue
- Improved account security
- Reduced risk of business disruption
Provide Hands-On Guidance
Show employees:
- What a passkey sign-in looks like
- How approval prompts work
- What to expect when logging in on different devices
Clear instructions help build confidence and reduce support requests.
Reinforce Security Awareness
Employees should know how to:
- Reject unexpected authentication requests
- Report lost or stolen devices immediately
- Maintain good device security practices
- Recognise suspicious activity
Although passkeys greatly improve authentication security, device security remains essential.
The Future of Business Authentication
Passkeys are rapidly becoming the preferred authentication method because they remove the traditional trade-off between security and usability.
For SMBs, they represent an opportunity to reduce credential-related risks, improve user experience, and lower administrative overhead. As passwordless technologies become standard across operating systems, browsers, and business applications, organisations that adopt them early can strengthen their security posture while simplifying everyday work.
If your organisation is considering a move to passwordless authentication, a structured assessment and phased implementation approach can help ensure a smooth and secure transition. Whether you’re planning a pilot programme or integrating passkeys into a wider Microsoft Entra ID strategy, the right preparation can make passwordless authentication both practical and scalable for long-term business growth.