Retired people must see it. The nsa has repeatedly warned that mobile phones are too dangerous to open every day
I. Invisible risks that are seriously underestimated: the high-risk function of the nsa, which you may have been running
As an old digital gun for almost 10 years, i've been dealing with a variety of mobile phone settings, and i've been giving fans cope security. But it was only in 2026 that the nsa issued a series of official warnings that i found out that we had a function in our ordinary people's mobile phone, which was almost open every day, but did not realize at all how dangerous it was – the nfc's immediate communications function。
Many friends have an impression of nfc, which is to brush the subway, to brush the door, to touch the file, to feel convenient and practical, to keep it open, and even to keep the screen open. Early warning data from the ministry of national security are here: between 2025 and april 2026, more than 35 per cent of the cases of leaking mobile phone information and bank card theft were related to the permanent opening of nfc. Especially our retired friends, who usually go out to buy food, go to the park, take a bus, use nfc frequency and double risk。
Why is nfc so dangerous? There are two things at the core that are measured as hard risks:
First, it's stolen from a close distance and can steal information without touching a cell phone. The outlaws, with modified reading equipment, are able to read the bank cards and traffic cards you have bound in secret within 10 centimetres of your mobile phone, without your authorization and without your authorization. Some of them have a small amount of security, and they can even complete the deduction directly. You don't even know it. There was a feedback from a fan who went around the market, left his phone empty and lost his password, and the bank had hundreds of dollars missing。
Second, privacy tracks were leaked and precision fraud was found. With the nfc on a permanent basis, hand-to-hand signal and card data from outside the country, the outlaws can analyze the market, hospitals, districts, parks, where you often go, and map your life trajectory. Combining other leaked information, you can create precise frauds — for example, knowing that you've just gone to the hospital, impersonating a health worker to make up for it; and knowing that you've often gone to the market, pretending to be a freshman to say that the order is abnormal, picking up our retired friends。
It is even more worrying that not only nfc, but also a few of its functions have been reminded by the ministry of national security, and many of them have been open for years:Positioning services, bluetooth automatic connection, wifi automatic connection. These features come together like a 24-hour “tracker” on a mobile phone that exposes your movements, habits, privacy. When we retire, we have sensitive data on our pension accounts, health information, family contact information, not only for money, but also for money. So today, all of the latest official warnings and practical steps in 2026, without exaggerating, and after five minutes, 90 per cent of the risk can be avoided。
Ii. Specific comparation: closure vs closes, 3 sets of data tell you how much the gap is
In order to get people to see the risks more directly, i made three-day measurements with my own backup, a set of frequent nfcs, positioning, automatic connections, all of them on a needs-based basis, and a comparison of the data, where the gap is particularly significant:
1. Information disclosure risk: frequent running = naked run, closed = 90 per cent protection
- regularity: in 3 days, the back office monitored 17 attempts by unknown equipment to read nfc data, 7 of which took place in these densely populated areas of the market for vegetables, subway stations; 216 attempts to locate the map, weather, information, app stations, on average, three times an hour, even if the app is withdrawn; and 2 free-of-charge shopping malls, wifi, which were connected, were stolen from mobile phone models and logs。
- closed status: nfc opens only when it is in use and turns off immediately; positioning only opens navigation, sells aps and is set to "time allowed"; bluetooth, wifi is not automatically connected. In the course of three days, there were no attempts to steal a brush, and the back-office positioning request dropped directly to eight, only when the app was used, and wifi was only home and trusted hot spots。
2. Mobile phones continue: every day and every day off
Our retired friends don't even know if their phones are battery-free. It was found that nfc, positioning, blue teeth were frequently used, with the back channel running at 32 per cent, using video, telephone and leaving 15 per cent power at 5 p. M.; when non-essential functions were shut down, the backstage consumption was reduced to 8 per cent, with the same intensity of use, and 20 per cent of the next night, with no daily charge on the backstage。
3. Fraudulent harassment: 5 per day for frequent periods and 1 per week for closure
Most notably, harassment of telephone calls and fraudulent text messages. On a regular basis, three precise harassment, two fraudulent telephone calls per day — either recommending health care or impersonating social security, bank staff — are available; only one regular harassment call a week after closure is received, and fraud is virtually non-existent because the outlaws are unable to reach your tracks and habits and are unable to make up targeted messages。
These three sets of data have been measured by me, and they have not been exaggerated. It's not that we have a poor sense of prevention, it's that a lot of people don't know the risks of these functions, and they think they've been making it easy. It is convenient to hide information leaks, property losses, especially among our retired people, who are unfamiliar with digital operations, and who are more vulnerable to exploitation。
Iii. Baby-sitting: 3 steps to shut down high-risk features, all of which apply to andre apple
So many risks, and then all dry stuff, whether you use chinese, rice, oppo, vivo, or apple phones, then you can do it in five minutes without knowing the complex parameters。
Step 1: prioritize the closure of nfc (high-risk number one, mandatory)
- anjo mobile phone (wawai/mi/oppo/vivo): 1. Lower cell phone control centre, find the nfc icon and click off (grey is off)
For fear of error in the control centre, enter settings: find “connection and sharing” (in chinese), “more connections” (in rice), “bluetooth and device connection” (oppo/vivo), find nfc, completely shut down the overall switch and close the “lockscreen nfc payments” “small amounts free of confidentiality”
3. Petty: it is no trouble to open the door when it's on a bus, when it's off, when it's off。
- applephone: 1. Open the settings wallet and apple pay
Turning off " lock access " " " double-click side key payment " , and " fast track mode " for traffic cards only, which are commonly used
3. When necessary, the control centre director closes nfc using a network icon。
Step 2: regulatory positioning services (avoiding trajectory leakage)
1. Closes the general switch (when normally not used): - andre: sets privacy position information to close the general switch
- apple: set privacy and security location services off。
2. Authorization to app (for immediate requirements only):
Neither andromeda nor apple will ever choose “always permitted” to be unified as “only permitted for the duration of use”
Positioning is directly prohibited only for navigation (gorde, 100-degree maps), take-out (corpion, hungry), cabling (dropping), like weather, information, wallpaper, small games。
3. Clearing the historical trajectory (key step): - andre: set the location of the location and remove all historical records
- apple: set up a privacy and security positioning service to shut down key locations and clear historical records。
Step 3: turning off automatic connections (fish protection, wiretapping)
1. Wifi automatically connects:
Set wlan to close "autolink known networks" "auto connect to public wifi"
Outside, free wifi without a password or a strange name (e. G. “xx mall free” “xx public wifi”), probably a fishing hot spot, leaks account numbers。
2. Automatic bluetooth connection:
Sets a bluetooth to close " auto-open " automatically pairing
When no bluetooth headphones or soundboxes are used, the bluetooth switch is shut down directly, and it is open for long periods of time and is easily paired with malicious devices, listening to calls and stealing data。
Four, three extra protections for our retired friends
In addition to closing down these functions, three simple practical little techniques were added, all of which were the latest security set up in 2026, without complex operations, to upgrade security。
1. Control of app sensitive privileges (focus on theft-proofing codes)
A lot of frauds are those who secretly read the sms codes and stole our pension and health insurance accounts。
Operation: set up application management privileges management and find text message, address book, microphone, camera
All aps (especially small games, unknown tools) except for twitter, text messages, and phone apps are prohibited. For example, flashlights need microphones, wallpapers need phone records, there must be problems, direct bans, no hesitation。
2. Turn on the off-line authentication password (discussor brushes)
Our retired friends sometimes lose their phones, the thieves get their hands on them, they can't locate them directly, and they can brush their accounts。
Operation: - / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / and / / / /
- mi: sets the account number search device to open the "closer authentication password"
- oppo/vivo: set up a security search device to open a "coercive shut-off" device
When it's turned on, the thief can't shut it down. You can locate it remotely, lock it. The money is absolutely safe。
3. Regular clearance authorization (1 per month, 5 minutes completed)
Many small procedures, third-party applications, long after authorization has been used, have always taken over authority and are easy to divulge。
Operation: we believe that i set up the authority management for personal information and authority, and delete all unused minor programs and third-party authorizations
The same applies to payment treasures and bank apps, which enter the security centre and remove unknown recording equipment。
Summary
All this talk to you today is about the mobile phone, which was repeatedly warned by the nsa in 2025-2026, to be safe. The core is in one sentence: nfc, positioning, bluetooth, wifi automatically connects, needn't necessarily be open for long periods, open on demand, run off。
Security is always more important than convenience when we retire, using a mobile phone as a convenient and reassuring tool. In fact, the setup is not a problem, it takes 30 seconds to check it, and it avoids the risk of leaking information, painting, fraud, and playing mobile phones。
Finally, i'd like to ask you: do you normally keep your nfc on or off? Has there been any cases of leaking information, fraud or harassment? Let's talk in the comment section
