With the popularity of smart phones, almost everyone owns a mobile phone. Its products are very convenient for communication, and it can easily achieve more home communications and even video calls. But the use of mobile phones has become more and more serious. Smartphones have functions such as shooting, GPS positioning, and GPS navigation. These functions are both convenient for people and may pose important threats. Among them, information leaks and GPS tracking of mobile phones is more frequent on mobile phones.
The mobile phone is aimed at the information age. It is an important communication device and entertainment device. However, there should be certain rules for the use of mobile phones. Not all of them can be used anywhere. For example, making calls at gas stations is prohibited.
Mobile phones are convenient and flexible and are widely used in people's work and life. Mobile phone communication is the transmission of voice and data information in an open electronic communication system. As long as there is a corresponding receiving device, it can intercept call information at any time, any place and anyone. Every mobile phone can make calls.
Dudayev, the head of the Chechen rebellion in Russia, was shot and killed by the Russian army with a cell phone. The phone may also leak when it is in standby or even turned off. Because the mobile phone must maintain uninterrupted signal exchange with the communication network, it can easily identify, monitor and track the generated electromagnetic spectrum. Some mobile phones have a hidden call function, which can be converted to a call state without a ringtone or any display, and display the secret. Intelligence experts say that you can’t keep your phone by your side.
Due to the serious consequences of using mobile phones, it reflects the importance of prohibiting the use of mobile phones in important places. The answer to the question of the use of mobile phones is that it is forbidden to carry mobile phones into the country's intelligence departments in many important places. The military and government departments in the office prohibit the use of mobile phones, or even closed mobile phones. In order to ensure that the use of mobile phones is truly eliminated, cell phone jammer will be installed in these important places to avoid carrying mobile phones or illegal entry of mobile phones and causing huge losses.
There are many important places where the use of mobile phones is banned. State secret units, important conference rooms, governments, and places where important information needs to be strictly protected in important units and other fields are usually installed with protection devices and use mobile phone shields to help ban mobile phones.
Not only that, with the popularity of smart phones, more and more places will install signal shielding devices, on the one hand to protect the safety of information, not for mobile phones, it is also to ensure the order of these places and maintain a good environment. The installation of mobile phone shields in the library provides readers with a good reading environment. The corporate meeting room is equipped with a mobile phone shield to ensure that the content of the meeting is kept confidential and will not be interrupted by mobile phone ringtones.