Switches such as mobile phones, bluetooths, insulated transmissions, and locational access are used by many to open them, and it is too much trouble to repeat them. Headphones, bracelets, last time, are kept open year after year; when software is installed, the window is enabled to ask for permission, and all is allowed directly. These operations, which appear to be less costly, are subject to repeated alerts issued by the state security agencies, and these long-standing functions not only reveal your address, travel trajectory, but also become, in a given scenario, a hidden channel that poses a security hazard beyond the imagination of ordinary people。
Many would feel that they are far away from each other and that attention is needed only for those who work in institutions and military engineering units. In practice, information leaks are never intended for specific groups of people. Each of us has an address, a place of work, a family contact, a travel route, a record of consumption, and these scattered messages, taken together, can restore a person's whole course of life. In the case of staff of scientific research, engineering and priority units, hand-held photographs of the scene, records of work communication, and once quietly obtained through wireless functions, the impact is no longer a mere disclosure of privacy but also touches the red line of national security. Safety protection is not a big deal. It is hidden in every cell phone setup。
Let's start with bluetooth, which you can easily ignore. Wireless headphones, smart watches and car-borne bluetooth penetration are now high, with the vast majority remaining open year after match. When bluetooth opens, hand-to-hand signals continue to be sent out to broadcast equipment, and all equipment eligible for perimeters can be scanned to your cell phone name, equipment type. The national security service has revealed that outlaws will attack places such as subways, malls, stations, etc., using bluetooth agreement loopholes, induce pairing or direct forced connection, try to locate information, read documents in equipment and even listen to audio content。
It is not said that bluetooth is a dangerous technology in itself, but its risk arises from “long-term unrestricted opening”. Many people think it's all right if i don't click on the connection. In reality, some of the old mobile phones, old bluetooth devices have an already overt security loophole that does not require your manual consent. This risk is magnified, especially in the vicinity of the confidential sites and the priority plant areas. To give you a simple and practical habit: when you don't use bluetooth headphones, car loads, bluetooth outside, you turn the bluetooth off directly at the pull control center. If it is not convenient to shut down temporarily, it is important to change the visibility of bluetooth's equipment to “only paired equipment” rather than to make it visible to all and to reduce the probability of being scanned。
The second element that needs to be checked is the close-range file-sharing function, which is delivered in isolation and transferred by nearby equipment. A lot of apples and andre users like to use them to share photos with their friends. The ministry of national security has sent a special reminder not to allow the launch to become an “infiltration risk”. If the permission to receive is set to be accepted by all persons, in public places a stranger can continuously send you a file request. Once received with care, the documents sent by the other party may contain malicious procedures; even if not received, the assailant can use this function to obtain your equipment markings for follow-up。
The correct set-up is simple: the function is shut down directly without the usual exchange of documents; when it is necessary and familiar with the message, it is opened on a temporary basis and the receiving range is set as a contact only and is closed immediately. Don't put it in the “all can send” mode for a long time. Many fraudulent, malicious documents are distributed in bulk, using a convenient, lazy and unorthodox mentality。
The third, and most critical and easily neglected, is the location of app. This has been the focus of the ministry of national security's repeated practice: location rights should not be “always allowed” and need not be denied. When we load app, we often eject permission applications, and the weather, maps, takeaways, taxis do need location, which is not a problem; however, many video software, reading software, small games, calculators do not need to know where you are or ask for location rights。
A lot of people keep saying "always allowed" means that this app will keep reading your location, recording your place of stay, commuting routes, frequent places, even if it's hanging from the backstage and not open for use. The long-term accumulation will allow a complete trajectory to be drawn. There are tests that show that part of the application of constant locator privileges can be accessed hundreds of times a day. Such data, if collected and circulated in violation of the law, would risk precision fraud and harassment at the door; continuous location records would also be collected and analysed by others with an ulterior motive for persons working in priority areas。
Here is a standardized set of authority adjustment steps that everyone can do. Open cell phone settings and find applicationsAuthority managementOn a case-by-case basis, check location privileges: maps, take-outs, taxis, set to "time-only permissions"; short video, reading, financial management, tool-type app, direct access to location; when social software issues a photograph, remember to turn off the tag on the location of the photograph, to send a circle of friends, to move, and not to take a precise doorshop, to locate a small area. (b) take photographs of the work-related scenes and clean up the location metadata of the photographs in a timely manner。
In addition to the three high frequency (hf) functions above, the nfc function will be activated as required. Nfc has easy access to door-brushing, bus cards, mobile phones, but it is a close communication function. The ministry of national security has advised that there is a risk that nfc will be read at close range in the vicinity of the sensitive facilities, and that outlaws can use specialized equipment to access vouchers, information stored inside the equipment. Opens the day-to-day commuting swipe card and closes the nfc manually after it is finished, so that it is not open all day. There are also lockscreens for fast payments, small amounts of confidentiality, which, although not classified as a risk, are prone to theft and suggest that, depending on their circumstances, they should not be closed。
There is also a place where many people step on the pit: free public wi-fi. Outside, you see wi-fi, who doesn't use a password, and you're connected to the video and login. Such uncertified public wi-fi, which has a low network threshold, allows the attackers to set up false hotspots with the same name, and when the users are connected, traffic passes through each other's equipment, chatting records, account codes, uploading images are all likely to be captured. The national security and anti-fraud service has repeatedly cautioned that the public use of free wi-fi is used as far as possible to browse ordinary web pages, not to log on to online banks, office accounts, not to transmit working papers and to give priority to mobile traffic。
Speaking of which, there are people who are worried that with so many switches on, does the phone become difficult to use? In fact, security and convenience are not in conflict, and the core principle is that when functions are used, they are closed immediately, and that temporary authorizations are granted without permanent authorization. Bluetooth, empty transmission, nfc, all of which are ad hoc functions, not having to be online all day; position, microphone, camera privileges, follow "just enough" and do not give redundant privileges。
Many of the security risks are the accumulation of long-standing habits. It is like locking the door outside the house, not saying that there will be thieves at the door, but locking the door is basic protection. These cell phone settings are the locks in our digital world. Without excessive panic, it is not blue teeth that are bound to be attacked, but to reduce exposure to their own windows and minimize the risk probability. In particular, the elders of the family, who are not familiar with the access window, agree, mostly directly, that when they are free, young people can help their families to check the cell phone access set and tell them which switches are to be shut down。
There are several additional mandatory requirements for readers working in scientific research, infrastructure, energy and institutional units: to cover the contents of the work, the use of personal mobile phones is strictly prohibited for filming and transmission; the connection of sensitive areas to strange bluetooths, public wi-fi is not allowed; photographs of the unit's interior scenes, equipment, drawings are not published on social platforms; the old mobile phones are to be withdrawn from all accounts before they are sold or discarded, the plant set up is restored, the data stored is over a number of times, instead of simply deleting the photographs, the data is transferred directly to prevent them from being read again。
Now mobile phones have become the repository of information that we carry with us, containing information about life, socialization, payment and even work. The methods of larceny by foreign intelligence agencies and outlaws are constantly being updated, and many attacks do not require sophisticated technology to attempt to obtain information by using the efficacious habits and software loopholes. National security is more than just a specialized sector; it is a small thing that every ordinary person can participate and start with a mobile phone set-up. Adjusting a few switches will take less than a few minutes to protect their privacy and information security。
Finally, i'd like to hear your thoughts: is your phone bluetooth always open? Did you find any access to app that didn't need to be located? Do you have any more small habits that keep your phone information secure? Welcome to the comment sectionCellular securitySkills. It was found useful to draw attention to the continuous sharing of useful and practical mobile phone security and anti-fraud universal content。
