# User not using SSL protocol to connect ## Description When MySQL server is configured with SSL, users can still connect to the server using `--ssl-mode=disabled`. In this case, the connection will not be encrypted and data will be subject to sniffing. When using SSL, it is recommended to enforce it for all users. ## Resolution To prevent users from connecting using an insecure protocol, you can act at instance-level: ```text [mysqld] require_secure_transport=ON ``` Or when creating the user: `CREATE USER 'jeffrey'@'localhost' REQUIRE SSL;` ## Need more support from Percona? Subscribe to Percona Platform to get database support with guaranteed SLAs or proactive database management services from the Percona team. [Learn more :fontawesome-solid-paper-plane:](https://per.co.na/subscribe){ .md-button }