Last updated on September 24, 2025
Security Keys are portable devices that a user inserts into the USB port of their device during an authentication process. YubiKey OTP (also called Yubico OTP) is a strong authentication mechanism built into all YubiKeys. It utilizes the one-time password (OTP) algorithm, but the OTP is embedded in the security key.

A user who wants to log in to an application integrated with Rublon provides their login and password in the first step of authentication. In the second step, they are asked to plug in their YubiKey OTP Security Key and touch the key. After touching the key, the OTP value is automatically entered into the text field, and the user gains access to their account. It’s very simple.
Rublon uses YubiCloud, Yubico’s web service for verifying one-time passwords (OTPs). The main benefit of using the Yubico Online Validation Service is that the YubiKeys are already ready to use out of the box.

List of YubiKey Models That Support YubiKey OTP (Yubico OTP)
- YubiKey 4
- YubiKey 4 Nano
- YubiKey 4C
- YubiKey 4C Nano
- YubiKey 5 Nano
- YubiKey 5 NFC
- YubiKey 5C
- YubiKey 5C Nano
- YubiKey 5C NFC
- YubiKey 5Ci
- YubiKey 5C NFC
- YubiKey Nano
- YubiKey Edge-n
- YubiKey NEO
- YubiKey NEO-n
- YubiKey Standard
Blue YubiKeys do not support YubiOTP.
List Of Integrations That Support YubiKey OTP Security Keys
- Active Directory Federation Services (AD FS)
- Aha!
- Array VPN
- BambooHR
- Barracuda VPN
- Bonusly
- Bugsnag
- Certify
- Check Point Mobile Access VPN
- Cisco AnyConnect VPN with ASA
- Cisco AnyConnect VPN with Cisco FTD Firepower Firewall – LDAP(S)
- Cisco AnyConnect VPN with Cisco FTD Firepower Firewall – LDAP(S)
- Cisco FirePower Management – RADIUS
- Cisco FirePower Management – LDAP(S)
- Citrix Gateway
- Confluence Server and Data Center
- Confluent
- Dell iDRAC
- Dropbox
- Envoy
- F5 BIG-IP APM VPN
- Fastly
- FogBugz
- Fortinet FortiGate SSL VPN
- Fortinet FortiMail
- Freshdesk
- GitHub
- G Suite
- HackerRank for Work
- Jamf Pro
- Jira Server and Data Center
- Jitbit
- Kemp
- MikroTik VPN
- Moodle
- Nextcloud
- Office 365
- OpenCart
- Open edX
- OpenVPN Cloud
- Outlook Web App (OWA)
- ownCloud
- PagerDuty
- Palo Alto GlobalProtect
- Pingdom
- Pulse Connect Secure SSL VPN
- Remote Desktop Protocol (RDP)
- Remote Web Access (RD Web)
- Remote Desktop Web Client (RD Web Client)
- Roundcube
- Salesforce
- Snipe-IT
- SOGo
- SonicWall VPN
- Sophos VPN
- Splunk
- SSH on Linux
- Sumo Logic
- Stormshield SSL VPN
- WatchGuard Firebox
- Weekdone
- Windows Logon
- WordPress
- Zendesk
- Zimbra Collaboration
- Generic SAML Service Providers