2025-08-15 00:00:00 VinCSS FIDO2 is used for passwordless authentication with integrated FIDO2 services by VinCSS such as OpenVPN, Jira, Gitlab, Owncloud... Especially, on Vsmart smartphones running VOS 3.0+, they become physical FIDO2 security keys for passwordless and strong authentication with Microsoft, Google, Facebook...