Cisco warned on Monday of serious flaws it found in an Internet-connected thermostat control, which it said are typical among products of vendors who aren't well-versed in network security. The flaws were found in the ComfortLink II thermostats made by Trane. The thermostats allow users to control room temperature from a mobile device, display the weather and even act as a digital photo frame. Cisco's Talos unit said the issues have now finally been patched since notifying Trane nearly two years ago, which is why it went public.