Millions of smart TVs and other streaming devices could be easily exploited by cybercriminals as they have several security vulnerabilities.
Samsung’s smart TVs and Roku’s smart-TV platform are the ones that have badly hit by the security flaws which allows hackers to change the channel, raise the volume, or (worst of all) play random YouTube videos.
"We found that a relatively unsophisticated hacker could change channels, play offensive content, or crank up the volume, which might be deeply unsettling to someone who didn’t understand what was happening," Glenn Derene, Consumer Reports' senior director of content.
This is achieved through the use of an open interface that Roku designed and published. There is no security risk to our customers’ accounts or the Roku platform with the use of this API. In addition, consumers can turn off this feature on their Roku player or Roku TV by going to Settings>System>Advanced System Settings>External Control>Disabled," said Gary Ellison, Roku's vice president
source- http://www.ehackingnews.com/2018/02/consumers-report-smart-tvs-vulnerable.html