Researchers have found a way to successfully hack connected hair straighteners to turn them on and increase the heating element up to its maximum temperature. The Glamoriser hair straightener has Bluetooth Low Energy (BLE) embedded for connecting to a mobile app. Through the app, anyone within range of the device can override the settings of the owner say, increasing the temperature and elongating the automatic shut-off time to its longest duration, which is 20 minutes. A U.K. fire service quoted that 650,000 house fires have been caused by the accessories.
Source: https://threatpost.com/firestarter-hacked-hair-straighteners/146434/