While a specific manufacturer is noted, improved security is needed for all Television sets with internet connectivity. Key vulnerability cited were weak WiFi controls that hackers could tap into within radio range.
QUOTE: Internet-connected TVs manufactured by Philips running the latest firmware update are wide open to browser cookie theft and other serious attacks by hackers within radio range, a security researcher has warned. Once someone has connected to the Miracast-enabled Wi-Fi network, they can use publicly available software to download any personal files that may be contained on USB drives plugged in to the Philips Smart TV. More troubling, connected devices can steal the highly sensitive browser cookies that many websites rely on to authenticate users when they access their private accounts.