YubiKey 4: One Device, Many Functions

One-hundred and eighteen years ago, Karl Elsener developed the first Swiss Army knife, introducing versatility never before seen in a simple knife for soldiers.

Today, Yubico pays homage to Elsener’s ingenuity and commitment to multi-feature versatility. The YubiKey is a single device with a wide selection of security and privacy choices under its rugged, molded-plastic exterior.

To expose all the functions of the YubiKey, we recently held a webinar — One Device, Many Functions: Inside the YubiKey. (The recording is embedded below.)

During the presentation, you’ll hear how the YubiKey defines secure access for armies of enterprises and consumers, including remote access and VPN, password managers, computer login, content management systems, and support for popular online services such as GitHub, Dropbox, Google for Work, and other Google Accounts.

Functions such as one-time passcodes (OTP) work with many systems including Salesforce, Okta, and Ping Indentity. Time- and event-based OATH tokens integrate with internal and customer-facing systems while PIV capabilities include support for Microsoft Windows login on select servers and client desktops. OpenPGP is for storing public/private key pairs for encryption, authentication and signing, and the FIDO Alliance’s Universal 2nd Factor (U2F) protocol gives a single YubiKey the ability to support many online services.

In addition, YubiKey allows owners to load and control their own secrets, with nothing revealed to third-parties, including Yubico.

It all adds up to the versatility we hope Elsener would commend.

Talk to our teamTalk to our team

Share this article:


  • CEO Corner: Maintaining stable growth while navigating global uncertaintyAs we officially close out the first quarter of 2025,  I am pleased we saw a quarter with solid growth and profitability along with ongoing demand for phishing-resistant authentication. We continue to see new types of high-profile cyber attacks appearing regularly, and a major reason for the success of phishing attacks is stolen credentials. As […]Read moreCEOCEO CornerEarningsMattias Danielsson
  • Introducing the Yubico Academy: Enabling partners for a phishing-resistant futureAt Yubico, strong partnerships are fundamental to a more secure digital world. Our commitment goes beyond providing leading security keys; it’s about actively fostering the growth of our valued partners through impactful enablement programs. A cornerstone is the Yubico Academy, featuring our comprehensive certification program.  This program enables our partners’ teams to become Yubico experts, […]Read more
  • AI is booming — but proving you’re human matters more than everIf you walked the show floor at the RSA Conference this year, you probably noticed the same thing I did: Artificial Intelligence (AI) is everywhere. Agentic AI. AI in threat detection. AI in firewalls. AI in identity management. AI-generated demos. AI everything. The energy around AI was undeniable, and we’re seeing real innovation, efficiency gains […]Read moreAIArtificial IntelligencephishingRSAC
  • Ditching passwords for good: Celebrating the inaugural World Passkey DayHave you ever been stuck in a relationship with someone who constantly lets you down, exposes your secrets, and leaves you vulnerable? Odds are you cut your losses, packed up your things and moved on. Today is the day to do the same with your passwords: say goodbye forever! The reality is a majority of […]Read morepasskeyspasswordlessWorld Passkey Day