According to the Digital Trends website, smart TVs may accurately know the Netflix programs that users want to see after a hard day's work, but it can also become a hacker accomplice, allowing them to grasp information that users are not willing to disclose. Ars Technica first reported that a new attack method showed that even without a television, hackers can use wireless TV broadcast signals to control a large number of smart TVs.
In demonstrating this method of attack, security consultant Rafael Scheel used a cheap radio signal transmitter to embed malicious commands in television signals. When a signal is broadcast to a nearby smart TV, the hacker can control the television.
Digital Trends said that the key to this attack is the use of two security flaws in the browser running in the background of the TV. The smart TV used in the test was manufactured by Samsung. But this does not mean that other manufacturers' TVs are safe. If a hacker modifies malicious code to exploit other browser flaws, this attack method may also be effective.
Shear told Ars Technica, “Once a hacker controls a user’s TV, he can cause harm to the user in a variety of ways. For example, a smart TV can be used to attack other devices on the home network, or to use a TV. The camera and microphone monitor the user.†In fact, in Shear's presentation, he was able to remotely control the TV, and even to restart and restore the factory settings could not “clean out†Sher.
Digital Trends said that the most frightening part of the attack method demonstrated by Sherr is that hackers do not need to touch any device that is attacked. This means that a hacker can control a large number of smart TVs. With growing concerns about smart home devices, the demonstration's attack method highlights the user's vulnerability.
Yossef Oren, a security researcher, told Ars Technica: “This research is very important because televisions use different people than computers. TV users do not understand/care about security. They are not used to getting security from TV. Tip, I don't know if I need to install the security update package."
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