core/homeassistant/components/mullvad/strings.json

{
  "config": {
    "error": {
      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
      "unknown": "[%key:common::config_flow::error::unknown%]"
    },
    "step": {
      "user": {
        "description": "Set up the Mullvad VPN integration?"
      }
    }
  },
  "entity": {
    "binary_sensor": {
      "exit_ip": {
        "name": "Exit IP"
      }
    }
  }
}