cybersecurity, Fido Alliance, FIDO U2F, FIDO U2F Security Key, FIDO2 Protocol, hack ssh password, OpenSSH, private SSH keys, SSH Client, SSH password cracking

OpenSSH now supports FIDO U2F security keys for 2-factor authentication

Here’s excellent news for sysadmins. You can now use a physical security key as hardware-based two-factor authentication to securely log…