If you've decided to move to hardware security keys for multi-factor authentication, the next question is which YubiKey to deploy. Yubico's product range covers a broad set of use cases, form factors, and protocol requirements, and choosing the right model for your environment will make deployment smoother, keep costs appropriate, and ensure the keys you purchase actually work with the systems you're protecting.
This guide is written for IT and security decision-makers in New Zealand organisations evaluating YubiKey procurement. It covers the main product lines, the use cases each is suited to, and the factors that should drive your selection.
Understanding the YubiKey Product Lines
Yubico organises its hardware into three primary consumer and enterprise product lines: the YubiKey 5 Series, the Security Key Series, and the YubiKey Bio Series. Each is built around FIDO2/WebAuthn support, but they differ in the additional protocols they support, their form factors, and their target use cases.
YubiKey 5 Series
The YubiKey 5 Series is Yubico's flagship enterprise range and the most versatile hardware security key available. In addition to FIDO2 and WebAuthn, the 5 Series supports FIDO U2F, OTP (including Yubico OTP and OATH-TOTP/HOTP), PIV smart card, and OpenPGP. This multi-protocol support makes it compatible with the widest possible range of enterprise systems, legacy applications, and identity platforms.
The 5 Series is the right choice for organisations that need to support multiple authentication protocols simultaneously, particularly those with mixed environments that include both modern cloud services and legacy on-premises applications. It is also the recommended choice for privileged access management, where authentication strength requirements are highest and where hardware attestation capabilities are most valuable.
Available form factors include USB-A, USB-C, and versions with NFC for mobile use. The YubiKey 5C NFC and 5 NFC are the most popular enterprise choices, covering both laptop and smartphone authentication in a single device.
For New Zealand organisations with government requirements or stringent compliance obligations, the YubiKey 5 FIPS Series provides FIPS 140-2 validated cryptographic modules, satisfying higher-assurance requirements for regulated environments.
Security Key Series
The Security Key Series provides FIDO2 and WebAuthn support in a simplified, lower-cost form factor. It does not support OTP, PIV, or OpenPGP protocols. For organisations that have fully modernised their identity infrastructure and are deploying exclusively to modern FIDO2-compatible platforms, this is a cost-effective option for broad user rollout.
The Security Key Series is well-suited to remote worker populations authenticating to cloud services such as Microsoft 365, Google Workspace, Okta, or Salesforce. It is not appropriate where legacy protocol support is needed or where PIV smart card compatibility is a requirement.
Available in USB-A and USB-C variants, with NFC versions for mobile use. The blue colour-coding distinguishes this series from the enterprise 5 Series, which can be useful for inventory management in large deployments.
YubiKey Bio Series
The YubiKey Bio adds an on-device fingerprint sensor, enabling biometric user verification without a PIN. It supports FIDO2 and WebAuthn, and is designed for environments where password-free, biometric-confirmed authentication is the goal. The fingerprint template is stored on the key itself and never transmitted, maintaining the same hardware security model as the rest of the YubiKey range.
The Bio Series is most suitable for individual professional use, executive and high-profile user deployments, and environments where PIN management is a friction point. It is not designed for shared workstation scenarios, and its higher cost makes it less suitable for broad enterprise rollout compared to the 5 Series.
Available in USB-A and USB-C form factors.
Matching Keys to Use Cases
Privileged administrators and IT staff: YubiKey 5 Series. Full protocol support, hardware attestation, and FIPS variants where required. These users are the highest-value targets for attackers and warrant the most capable hardware.
Remote workers on cloud platforms: Security Key Series or YubiKey 5 Series, depending on whether legacy protocol support is needed. If your remote workforce authenticates exclusively to modern cloud services, the Security Key Series provides solid phishing-resistant MFA at an accessible price point. If there is any legacy application footprint or VPN requiring OTP, go to the 5 Series.
Shared workstations and kiosk environments: YubiKey 5 Series with PIN protection. In shared environments, biometric keys are not appropriate as biometric templates are per-user. PIN-protected FIDO2 keys provide user verification without requiring a dedicated device per user.
Executive and high-profile users: YubiKey Bio or YubiKey 5 Series. Both are appropriate. The Bio's biometric experience reduces friction for users who find PIN entry cumbersome, while the 5 Series provides full protocol flexibility if these users access a broader range of systems.
Government agencies with NZISM requirements: YubiKey 5 Series or 5 FIPS Series. The NZISM's recommendation of hardware tokens for privileged and remote access is well served by the 5 Series, and the FIPS variant satisfies higher-assurance classification environments where cryptographic validation is required.
Connectivity and Form Factor Considerations
The most common deployment question is which physical interface to choose. USB-A remains prevalent on desktop hardware, while modern laptops increasingly ship with USB-C only. NFC adds the ability to authenticate on iOS and Android devices by tapping the key to the phone, which is important for organisations where mobile authentication is part of the workflow.
The safest general-purpose choice for most New Zealand enterprise environments is the YubiKey 5C NFC, which covers USB-C laptops and NFC-capable smartphones in a single device. Organisations with predominantly USB-A desktop infrastructure should consider the 5 NFC or a mix of USB-A and USB-C models depending on their hardware fleet.
We recommend issuing each user at minimum two keys: a primary and a backup. Lost-key recovery is one of the most common operational friction points in hardware MFA rollouts, and having a pre-registered spare avoids the need for emergency helpdesk workflows when a key is misplaced.
Procurement and Deployment Support in New Zealand
Trust Panda is an authorised Yubico reseller operating in New Zealand with locally held stock. We supply single units through to volume enterprise orders, and we offer access to the YubiEnterprise Subscription programme for organisations that need a managed procurement, delivery, and replacement model at scale.
Our Yubico-certified engineers can assist with deployment planning, identity platform integration, and policy configuration across Microsoft Entra ID, Okta, Google Workspace, and other major platforms. If you're assessing which keys to deploy or need help designing a rollout that works for your environment, we're here to help.
Browse the full range at trustpanda.co.nz, or contact our team directly to discuss volume pricing and deployment support.
Sales: sales@trustpanda.com
Support: support@trustpanda.com
