ESP8266 broadcasting unwanted SSID
The esp8266 sketches broadcast a unsecured network / SSID (Example: ESP_123456). This behaviour can and should probably be disabled by using `WiFi.mode(WIFI_STA);` in the setup routine of the sketch.

Example:
```
...
  WiFi.begin(wifiSSID, wifiPassword);
  WiFi.mode(WIFI_STA);
  while (WiFi.status() != WL_CONNECTED) delay(500);
...
```