Expanded Security Key Series: Phishing-resistant, FIDO-only MFA

Security Key Series Expansion

Last month, we announced the expansion of both Yubico’s YubiEnterprise Subscription and our Security Key Series lineup, which included the addition of two new enterprise, FIDO-only (FIDO2/WebAuthn and FIDO U2F) security keys. We’re excited to share that the Security Key Series are officially available today and can be purchased via our expanded YubiEnterprise Subscription program for enterprises or directly on Yubico.com for consumers.

The goal with these new enhancements is to meet our customer’s requirements while still offering the most value. One of the ways we’re achieving this is by providing the flexibility for enterprises to purchase the increasingly popular Security Key Series at an affordable price as part of the YubiEnterprise Subscription program. To help enterprises better keep track of inventory, serial numbers are etched on the back of the keys to differentiate them from other YubiKey models.

We will also continue to offer a version without serial numbers available via subscription or on a perpetual purchase. The retail price remains at $29 for Security Key C NFC and $25 for Security Key NFC. Additionally, to match the iconic look and feel of our flagship YubiKey 5 Series, the entire lineup transitions from blue to black in color.

A Modern MFA Alternative

With the recent updates to Twitter’s (X) authentication choices, as well as Apple adding support for security keys and Meta’s testing of Meta Verified that includes added paid protection option, users may be left wondering what the best way to approach their security is. We encourage Twitter (X) users and others who are looking for a modern MFA alternative to SMS or authenticator apps to check out the Security Key Series, or take Yubico’s quiz to see which key is right for you.

For more information on the new Security Key Series, visit our blog here. Details on Yubico’s new, updated YubiEnterprise Subscription offering can be found here and be sure to visit our calculator to see the cost savings you can achieve. 

Talk to our teamTalk to our team

Share this article:


  • FIPS certified vs. FIPS compliant: What’s the real difference?“Is your MFA solution FIPS compliant, or is it certified?”  This is a question we hear a lot, and for good reason. In industries where security and compliance are critical (especially in government contracts), understanding the difference between FIPS certified and FIPS compliant isn’t just semantics – it can mean the difference between meeting requirements […]Read moreFIPSNIST
  • 2025 Global State of Authentication survey: A world of difference in cybersecurity habitsIn a world that’s more connected than ever, the landscape of cybersecurity threats is constantly evolving. Bad actors, now supercharged with artificial intelligence (AI), are becoming increasingly adept at exploiting human error through sophisticated phishing and social engineering attacks. This makes robust cybersecurity a universal issue, impacting everyone from individuals to the largest global enterprises. […]Read moreGlobal State of Authenticationsurvey
  • Making digital security a right: Inside Yubico’s Secure it Forward programTechnology can be a great equalizer — but only if the strongest protection is within reach. Since 2022, Yubico has donated more than 65,000 YubiKeys to hundreds of organizations worldwide — a retail value of over $3.3 million. Each key helps strengthen digital protection for those doing vital work in their communities. This isn’t just […]Read more
  • Unlocking trust in enterprise security: Yubico and Okta empowering businesses togetherCollaboration with ecosystem partners is critical for providing our customers with the best cybersecurity solutions. Together, Yubico and Okta have achieved remarkable milestones over the years, including launching innovative solutions and aligning our go-to-market efforts – all aimed at delivering the most impactful cybersecurity solutions and user experience for our customers and partners. At the heart […]Read moreOktaOktane