Can I use a hardware key (YubiKey) with Openline

Yes, via WebAuthn. Register your key at Account → Security → Add security key.

Further reading

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.