Roku devices and Samsung smart TVs have easy-to-exploit security vulnerabilities, according to testing carried out by Consumer Reports.
"We found that a relatively unsophisticated hacker could change channels, play offensive content, or crank up the volume," the magazine says. "This could be done over the web, from thousands of miles away."
Consumer Reports points out that suddenly having channels change could be confusing or even frightening to someone who was unaware of why it was happening.
A smart TV is highly customizable and allows users to watch Internet-based sites like Netflix or Hulu on their televisions; however, the access to the Internet exposes them to hackers more than older TVs.
Consumer Reports found vulnerabilities in a TCL TV model using the Roku system, and they say it is also present in other models running the Roku platform. This is how the hackers could get in, according to Consumer Reports: