Why this matters for SMEs
The biggest value of passkeys is not that they are technically elegant, although they are. It is that they tackle one of the most persistent security weaknesses in business environments: the mismatch between human convenience and secure login behaviour.
1. Passwords continue to create avoidable risk
In many SMEs, users still:
* reuse passwords
* rely on memorable but weak credentials
* fall for phishing pages
* resist MFA when it feels cumbersome
* store passwords badly
* share accounts in unhelpful ways
Passkeys help because they remove much of the burden of password creation, recall, and safe handling.
2. Simpler security usually scales better
One reason security controls fail is that they depend on users doing too much consistently.
Passkeys simplify that experience:
* fewer passwords to remember
* less typing
* less chance of entering credentials into malicious sites
* potentially smoother login on trusted devices
For SME leaders, this matters because usable security tends to outperform theoretically perfect security that everyone quietly works around.
3. It supports a broader shift toward phishing-resistant authentication
The most strategic value of passkeys is that they are part of a broader move toward authentication methods that are safer by default.
That aligns with a growing recognition across cybersecurity that:
* passwords are too stealable
* SMS codes are not ideal
* user fatigue around authentication is real
* phishing-resistant methods are increasingly worth prioritising
Passkeys do not eliminate identity risk entirely, but they significantly improve the baseline.
What the NCSC says organisations should understand
The NCSC guidance is practical in tone and avoids overselling.
Passkeys are not a universal fix for everything
They improve login security, but they do not replace the need for:
* secure account recovery processes
* good device security
* access control discipline
* joiner, mover, leaver processes
* monitoring for suspicious activity
* awareness of social engineering
If a user’s device is compromised, or if recovery processes are weak, account security can still be at risk. Authentication is foundational, but it is not the whole building.
Trusted devices become even more important
Because passkeys are managed on trusted devices, businesses need confidence in:
* device security
* screen lock use
* biometric or PIN protection
* account recovery choices
* secure management of corporate devices
* separation between personal and business usage where relevant
For SMEs using bring-your-own-device models, this is especially important. A passkey strategy works best when device trust is not just assumed.
Adoption will be gradual
Not every service supports passkeys yet, and not every SME has the same identity maturity.
That means most organisations will be living in a mixed environment for a while, with some services using:
* passwords
* MFA
* password managers
* passkeys
* single sign-on
* conditional access controls
The transition is likely to be evolutionary rather than dramatic. Which is probably wise, because dramatic changes to authentication tend to generate support tickets at a speed visible from orbit.
Practical actions for SMEs
The smart SME response is not to rush blindly into every passkey-enabled service. It is to treat passkeys as part of a more deliberate authentication improvement plan.
Priority actions
1. Review which business services already support passkeys
Start with major platforms used for email, productivity, identity, finance, and collaboration.
2. Prioritise high-risk accounts first
Admin accounts, finance systems, email accounts, and identity platforms are good candidates.
3. Check device trust and management controls
Make sure endpoint security, screen lock enforcement, and recovery processes are robust enough.
4. Align passkeys with existing identity controls
Passkeys work best alongside good access control, MFA strategy, and account lifecycle management.
5. Train users on what passkeys are and are not
Users need to understand the difference between passkeys and passwords, especially in mixed environments.
6. Keep secure recovery in mind
Strong login security can be undermined by weak recovery flows, shared accounts, or poor admin practice.
Quick comparison table
Below is a simple comparison to help frame the shift.
| Authentication method |
Main weakness |
Passkey advantage |
| Password only |
Reuse, theft, phishing |
Removes typed secret from normal login |
| Password + SMS code |
Vulnerable to phishing and interception risks |
More phishing-resistant |
| Password + app MFA |
Better, but still password-dependent |
Reduces password handling burden |
| Passkey |
Depends on trusted device and recovery security |
Stronger, simpler, phishing-resistant design |
The key takeaway from the table is that passkeys are not just “another MFA option.” They represent a different model of authentication.
The bigger takeaway
The NCSC’s guidance matters because it reflects a wider security truth: passwords have lasted longer than they deserved to. Passkeys offer a more modern answer to a very old problem, reducing the chances of credential theft while also making login easier for many users.
According to the NCSC, passkeys are a password replacement and are resistant to phishing attacks. For SMEs, that combination is powerful. It means passkeys are not only a technical improvement, but also a practical way to reduce one of the most common causes of compromise.
The right way to think about passkeys is not as an overnight replacement for every login process. It is as a strong direction of travel. The businesses that prepare well will be the ones that combine passkey adoption with better device trust, stronger identity controls, and more mature recovery processes.
In other words, passkeys are an excellent step forward. They just work best when the rest of your identity strategy is not held together with sticky tape and optimism.
FAQs
1. What is a passkey?
According to the NCSC, a passkey is a replacement for a password that is created, saved, stored, and managed on your trusted device by your credential manager.
2. Are passkeys more secure than passwords?
Yes, particularly because the NCSC says they are resistant to phishing attacks. They also reduce the risk of password reuse and stolen credentials.
3. Should SMEs move to passkeys now?
SMEs should start assessing where passkeys can be adopted, especially for high-value accounts and services that already support them. The move should be part of a broader identity and device security strategy.
