As one of the commonly used household appliances, smart TV has become an indispensable member of many consumer families. A smart TV can be installed with various programs, and it can be connected to the Internet to order a variety of desired programs, which is extremely convenient. However, what many people do not know is that such a convenient smart TV has been quietly "stared at" by many hackers.
A recent survey data released by the US Consumer Reports Group pointed out that smart TVs installed in consumers ’homes are vulnerable to hackers’ intrusion and manipulation, and track their daily viewing habits without the users ’awareness.
This non-profit consumer product testing organization inspected the top five smart TVs on the market and found that even a hacker could remotely control several of them, such as adjusting the volume to the maximum, Turn off the TV's Wi-Fi network, quickly change channels, or let the TV play annoying content.
It is understood that most of these smart TVs such as RCA and Insignia use the Roku TV platform. The test found that these smart TVs continuously track the user's viewing content and can feed back to the TV manufacturer or its business partners, using a technology called Automatic Content Recognition (ACR). ACR helps TV recommend TV shows you may like, but it can also be used to recommend ads to your family. These data can also be combined with your other personal information to establish your behavioral habits and be sold to other marketers.
The smart TV will ask the user's permission to collect the user's viewing data during the initial setup process, but will also warn them that they may not be able to enjoy some functions if they refuse. Consumers who are unaware or impatient may skip settings without reading or understanding what they allow.
However, in response to this report, Roku also issued a statement in response. The response pointed out that Roku has always been serious and serious about the security of the platform and the privacy of users. The report of the Consumer Reporting Organization is misleading and there are no security risks. The statement also mentioned that consumers can turn off the remote control function by using the setting function.
Some people in the industry believe that users must develop good habits when using smart TVs. Do not install APP programs from unknown sources or browse informal websites casually, so as not to give hackers an opportunity.
Displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. In the production process, the measurement of displacement is generally divided into measuring the physical size and mechanical displacement. According to the different forms of the measured variable, the displacement sensor can be divided into two types: analog and digital. The analog type can be divided into two types: physical property type and structural type. Commonly used displacement sensors are mostly analog structures, including potentiometer-type displacement sensors, inductive displacement sensors, self-aligning machines, capacitive displacement sensors, eddy current displacement sensors, Hall-type displacement sensors, etc. An important advantage of the digital displacement sensor is that it is convenient to send the signal directly into the computer system. This kind of sensor is developing rapidly, and its application is increasingly widespread.
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