https://www.yubico.com/au/setup/yubikey-5-series/
https://www.yubico.com/products/yubico-authenticator/
https://www.yubico.com/why-yubico/how-the-yubikey-works/
https://www.kensington.com/software/verimark-setup/verimark-guard-setup-guide/
For Windows: https://www.kensington.com/siteassets/software-support/verimark/2022-update/verimark-guard/k20-3461-windows-provisioning-tool_1643292483.pdf
For MacOS: https://www.kensington.com/siteassets/software-support/verimark/2022-update/verimark-guard/k20-3461-verimark-guard-macos-provisioning_1643292488.pdf
For Chrome: https://www.kensington.com/siteassets/software-support/verimark/2022-update/verimark-guard/chrome-security-key_1643292483.pdf
https://fido.ftsafe.com/setupsecuritykey/
Setup with Windows: https://fido.ftsafe.com/set-up-keys-in-windows/
Key Manager for Windows/MacOS: https://fido.ftsafe.com/feitian-sk-manager-tool-user-manual/