Some versions of Philips Smart TV with latest firmware update are wide open to hackers and also vulnerable to cookie theft. The fault is in a feature called, that allows TVs to act as a WiFi access point with a hard-coded password ‘Miracast’ Researchers tested the flaw on Philips 55PFL6008S TV, but believe that many 2013 models are also affected because of the same firmware installed. However, such attacks are not possible to happen in the wild, but if your neighbor is enough smart and knows your WiFi password, then you should change your password to stronger one or turn off the Miracast feature.
Source: https://thehackernews.com/2014/03/philips-smart-tvs-vulnerable-to-screen_29.html