Technology
Your phone shares data at night: Here’s how to stop it
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If your smartphone stays on your bedside table overnight, it stays busy long after you fall asleep.
Even while it appears idle, your phone continues to send and receive data in the background. Some of that activity is expected. Your device checks for security patches, syncs system settings and keeps essential services running. Other data transfers are far less obvious and far less necessary.
Experts warn that smartphones routinely transmit tracking and advertising signals without you fully realizing it. In many cases, that data includes information that should only be shared with clear and informed consent.
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Even while you sleep, a nearby smartphone can continue sending and receiving data in the background. (Getty Images/monkeybusinessimages)
What data your phone sends while you sleep
Your phone is not just charging overnight. It operates in a continuous data loop that generally falls into two categories.
Legitimate system data
This includes updates, crash reports and basic diagnostics. Operating systems rely on this information to fix bugs, improve stability and protect against security threats. In most cases, this data collection is disclosed and configurable.
Tracking and advertising data
This is where concerns grow. Smartphones also transmit location signals, device identifiers, advertising IDs, usage patterns and app behavior data. Companies combine this information to build detailed user profiles and deliver targeted ads that promise higher engagement. The problem is that the line between necessary diagnostics and commercial tracking is often blurry. Many of us never realize how much data flows out of our phones overnight.
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Phones often stay active overnight, syncing apps, checking networks and refreshing data unless you limit background activity. (Kurt “CyberGuy” Knutsson)
What we know about phone tracking today
Independent academic investigations found that some Android devices transmitted data linked to tracking behaviors involving major companies like Meta and Yandex. The research, conducted by teams from IMDEA Networks Institute and European universities, showed that certain apps and services continued communicating with external servers even after users attempted to limit tracking. The researchers observed data flows that could link web activity with app identifiers, raising concerns about how effectively privacy controls were enforced at the system level.
There is also long-standing concern around smartphones appearing to “listen” to conversations. While no public evidence shows that phones actively record private speech for advertising, many users report ads that closely mirror recent conversations. At a minimum, aggressive data collection combined with location, app usage and search history can make these moments feel unsettling.
Despite years of scrutiny, most smartphones still operate this way today. The good news is that you can reduce how much data leaves your device.
How to protect yourself from overnight data sharing
You do not need to give up your smartphone to regain control. Small settings changes can make a real difference.
1) Review app permissions
Start with your installed apps. Focus on those with access to your location, microphone, camera and tracking data. Only allow sensitive permissions while the app is in use. Be especially cautious with apps that run continuously in the background.
How to review app permissions on iPhone
- Open Settings
- Tap Privacy & Security
- Tap Location Services, Microphone, Camera or Tracking
- Select an app from the list
- Choose While Using the App or Never when available
For tracking controls:
- Go to Settings
- Click Privacy & Security
- Tap Tracking
- Turn off Allow Apps to Request to Track
This prevents apps from accessing your advertising identifier and sharing activity across apps and websites.
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Turning off app tracking on your iPhone blocks apps from linking your activity across other apps and websites. (Kurt “CyberGuy” Knutsson)
How to review app permissions on Android
Settings may vary depending on your Android phone’s manufacturer.
- Open Settings
- Tap Privacy & Security or Security and privacy
- Click More privacy settings
- Tap Permission Manager
- Select Location, Microphone, Camera or Sensors
- Tap an app and choose Allow only while using the app or Don’t allow
To review background access:
- Go to Settings
- Click Apps
- Select an app
- Tap Mobile data & Wi-Fi
- Turn off Background data if the app does not need constant access
This limits silent data transfers when the app is not actively open.
2) Limit background activity
Disabling background activity reduces how often apps sync data when you are not using them. This also limits automatic cloud activity. Keep in mind that this may affect real-time backups or notifications. Weigh the convenience against the privacy trade-off.
How to limit background activity on iPhone
Turn off Background App Refresh
- Open Settings
- Tap General
- Tap Background App Refresh
- Tap Background App Refresh at the top
- Select Off or Wi-Fi
To disable it for specific apps:
- Stay on the Background App Refresh screen
- Toggle off apps that do not need to update in the background
This prevents apps from quietly syncing data when they are not open.
How to limit background activity on Android
Settings may vary depending on your Android phone’s manufacturer.
Restrict background data
- Open Settings
- Tap Apps
- Select an app
- Tap Mobile data & Wi-Fi
- Turn off Background data
Restrict background battery usage
- From the app’s settings screen, tap Battery
- Select Restricted or Limit background usage
This reduces background syncing and prevents apps from running silently when you are not actively using them.
3) Turn off personalized advertising
Personalized ads rely on device identifiers and activity data collected across apps. Turning this off limits how your behavior is used for ad targeting, even when your phone is idle.
How to turn off personalized ads on iPhone
- Open Settings
- Tap Privacy & Security
- Tap Tracking
- Turn off Allow Apps to Request to Track
To limit Apple ads:
- Go to Settings
- Click Privacy & Security
- Tap Apple Advertising
- Turn off Personalized Ads
This reduces ad targeting based on your activity within Apple services.
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Disabling personalized ads reduces how your behavior is used to target ads, even when your phone is idle. (Kurt “CyberGuy” Knutsson)
How to turn off personalized ads on Android
Settings may vary depending on your Android phone’s manufacturer.
- Open Settings
- Tap Privacy & Security or Security and privacy
- Click More privacy settings
- Tap Ads or Advertising
- Tap Delete advertising ID or Opt out of Ads Personalization
- Click Delete advertising ID
You can also reset your advertising ID from this menu to break the link between past activity and future ads.
This limits how apps and advertisers track behavior across apps and websites.
4) Consider a VPN
A reputable VPN can help obscure your IP address and reduce certain forms of network-based tracking. It does not stop all data collection, but it adds a layer of protection, especially on shared or public networks.
For the best VPN software, see my expert review of the best VPNs for browsing the web privately on your Windows, Mac, Android and iOS devices at Cyberguy.com.
5) Remove your data from broker sites
Even if you lock down your phone, much of your personal information already exists online. Data brokers collect and sell details like your name, address, phone number and browsing behavior.
Using a reputable data removal service can help locate and remove your information from these sites. This reduces how easily advertisers and third parties can link your phone activity to your real identity.
For ongoing protection, these services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet. By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you.
Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com.
Get a free scan to find out if your personal information is already out on the web: Cyberguy.com.
6) Use airplane mode or power off at night
If overnight data sharing concerns you, the simplest option is also the most effective. Turning your phone off or using airplane mode cuts off wireless communication while still allowing alarms to work.
How to turn on airplane mode on iPhone
- Open Control Center by swiping down from the top right corner
- Tap the airplane icon so it turns orange
- Confirm that cellular, Wi Fi and Bluetooth turned off
How to turn on airplane mode on Android
Settings may vary depending on your Android phone’s manufacturer.
- Swipe down from the top of the screen to open Quick Settings
- Tap the airplane mode icon
- Check that mobile data, Wi Fi and Bluetooth are disabled
If you still want Bluetooth for a watch or headphones, you can turn it back on manually after enabling airplane mode. This keeps most background data transfers blocked while you sleep.
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Kurt’s key takeaways
Your smartphone works around the clock, even when you do not. Some background data sharing keeps your device secure and functional. Other data collection exists primarily to fuel tracking and advertising. The key is awareness and control. By tightening permissions, limiting background activity and disabling ad personalization, you reduce how much of your personal data leaves your phone while you sleep. Privacy is not about fear. It is about informed choices.
Do you leave your phone fully on overnight, or will tonight be the night you finally switch it off? Let us know by writing to us at Cyberguy.com.
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Copyright 2026 CyberGuy.com. All rights reserved.
Technology
Valve is so behind on Steam Controller orders that some won’t ship until 2027
Valve has some good news and bad news about Steam Controllers. The good news: if you make a reservation for a Steam Controller, the company will now show you one of three estimates of when you’ll be able to actually order your gamepad: by September 2026, by December 2026, or sometime in 2027. The bad news: any reservations made today “indicate a 2027 date for shipping,” Valve says.
“We have no plans to stop making Steam Controller,” according to Valve. “But as we look at the current demand compared to how many we know we can make by the end of the year, we want to manage expectations as much as we can with regards to when folks can expect to receive their order.”
Valve’s very good new Steam Controller went on sale in early May, and the initial rush led some people to run into frustrating problems with trying to check out ahead of the controllers eventually going out of stock. A few days later, the company announced that it would be implementing a reservations queue for interested buyers so they could get on a waitlist. If you’re on the waitlist, when you get notified that a Steam Controller is ready for you to buy, you have 72 hours to actually make the order.
“When we launched Steam Controller last month, we quickly saw that initial demand exceeded our expectations,” Valve says. “Switching to a reservation queue has (hopefully) cut down on the headaches on the customer side, and for us it’s also been helpful as we plan ahead and try to get as many out as quickly as we are able.”
All three of Valve’s big hardware products were delayed from a planned early 2026 launch because of the component crisis, Valve still hasn’t announced when the Steam Machine PC or Steam Frame VR headset might go on sale. However, just yesterday, Valve officially launched its big SteamOS 3.8 update with support for the Steam Machine. It’s also been importing a lot of hardware into the US as of late.
Technology
McDonald’s AI drive-thru may take your next order
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The next time you pull up to a McDonald’s drive-thru, the voice taking your order may not be human. McDonald’s is testing a new AI-powered system called ArchIQ at five U.S. locations. The company has not said where those restaurants are located. The voice assistant, nicknamed Archy, can take drive-thru orders and has shown it can handle both English and Spanish.
For anyone who has repeated “no pickles” into a speaker box more than once, this could sound helpful. However, if you remember McDonald’s last AI drive-thru experiment, you may also wonder whether your burger order could somehow turn into a bag full of surprise McNuggets.
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WOULD YOU EAT AT A RESTAURANT RUN BY AI?
McDonald’s is testing an AI drive-thru system called ArchIQ at five U.S. restaurants. (Kurt “CyberGuy” Knutsson)
What is McDonald’s AI drive-thru?
ArchIQ is McDonald’s new AI system for restaurants. It can take drive-thru orders and also help with operations behind the scenes.
In a post on X, McFranchisee, an anonymous McDonald’s franchisee account, said the system is currently in five test stores and has processed more than one million transactions. The account also said about 90% of orders were completed without a human stepping in. That number sounds promising. Still, McDonald’s has not confirmed a nationwide launch date. For now, this remains a limited test.
The system also appears to connect with a bigger McDonald’s plan called “McDonald’s > NEXT.” CEO Chris Kempczinski described the strategy as a way to bring in more customers and improve restaurant productivity. The plan also includes menu changes, restaurant redesigns, technology upgrades and more focus on hospitality.
Why McDonald’s is testing AI ordering
Drive-thrus can get chaotic fast. Someone changes an order after the total appears. A child calls out from the back seat. Road noise makes the speaker hard to hear. Then the driver remembers the extra sauce after everything has already gone through. That is the type of pressure McDonald’s wants AI to handle.
If ArchIQ works well, it could help restaurants move cars through the line faster. It may also reduce mistakes during busy hours. Workers could then focus more on preparing food, handling payments and helping customers who need a real person.
ArchIQ also appears to have a management role. In the same X post, McFranchisee described Archy as a tool that could alert managers to bottlenecks or other issues before they slow down operations.
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The AI assistant, nicknamed Archy, can take drive-thru orders and may also help managers spot restaurant slowdowns. (McFranchisee)
McDonald’s tried AI drive-thru ordering before
This new test follows McDonald’s earlier AI drive-thru experiment with IBM. That program involved more than 100 restaurants. McDonald’s ended the test in 2024 after customers complained about order accuracy. Some mistakes also went viral, creating an embarrassing moment for McDonald’s and raising questions about whether the technology was ready for the drive-thru. Customers reported wrong items, strange quantities and other order mix-ups. That history is why this new test will get extra attention.
This time, McDonald’s is working with Google technology. McFranchisee also claimed every McDonald’s in the U.S. is getting Google Edge Cloud hardware in anticipation of the rollout. McDonald’s seems to believe the newer system can perform better than the last one. The real test will come when regular customers use it during real drive-thru rushes.
How McDonald’s AI drive-thru could help customers
If McDonald’s gets this right, the most obvious benefit is speed. An AI ordering system does not get tired during a long shift. It may also help more customers order in the language they prefer. That could make a busy drive-thru feel less frustrating, especially during breakfast or late-night hours.
The system may also ask clearer follow-up questions and catch missing details before the order reaches the kitchen. That would be a win for customers who want to get in, get their food and get on with the day.
The biggest problem with AI drive-thru orders
The biggest concern is accuracy. AI can still misunderstand people. That gets frustrating fast when you are trying to grab lunch between errands or get your kids fed from the back seat. A wrong order wastes time. It also puts workers in the position of fixing a mistake the machine made.
There is also the customer service side. Some people like hearing a real person at the speaker. Others may find an AI voice cold or annoying, especially if the system gets confused.
Then there is the privacy question. If an AI system takes your order, customers may wonder what gets collected, how long it is kept and who can access it. McDonald’s has not publicly explained those specifics for this current ArchIQ test.
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A drive-thru menu board stands outside a McDonald’s restaurant in Hercules, Calif., on Oct. 23, 2024, amid an E. coli outbreak linked to onions in Quarter Pounder sandwiches that has sickened dozens and killed one person across the U.S. (David Paul Morris/Bloomberg via Getty Images)
How to avoid AI drive-thru mistakes
Before you leave the drive-thru, take a moment to check the order screen. Make sure the items match what you said. Listen when the system repeats your order. Keep your receipt until you confirm the food is right.
Also, avoid sharing extra personal details at the speaker box. Your order should only require your food choices and payment.
If the AI gets confused, ask for a crew member. You do not need to keep going back and forth with a machine over fries.
What this means for you
For now, you probably will not notice a change at your local McDonald’s. The ArchIQ test appears limited to five U.S. restaurants, and the company has not said when it could expand.
Still, this gives customers a preview of where fast food may be heading. AI could soon play a bigger role in how restaurants take orders and manage the kitchen. That may speed up the line, though it could also make the experience feel less personal.
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Kurt’s key takeaways
McDonald’s clearly wants AI to play a bigger role in its restaurants. From a business point of view, the idea makes sense. Shorter drive-thru lines could help franchisees and customers. Better restaurant data could also help managers fix problems faster. But I still want the human backup. Food orders can be messy because people are messy. We change our minds. We talk over each other. We forget the extra ketchup until the last second. AI may handle much of that one day. For now, I would treat it like any busy drive-thru interaction. Speak clearly. Check the order. Do not pull away until you know your food is right.
Would you trust an AI voice to take your McDonald’s order, or do you still want a real person on the other end of the speaker? Let us know by writing to us at Cyberguy.com
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Copyright 2026 CyberGuy.com. All rights reserved.
Technology
Midjourney goes from generating cat images to full-body ultrasound scans
Midjourney CEO David Holz just showed off the company’s first hardware product and plans to build a San Francisco spa, which he admitted is a bit different from the “cat pictures” produced by its AI image generator. Dubbed The Midjourney Scanner, it’s an ultrasound-based full-body scanner that uses a ring of sensors to capture vertical slices of the inside of your body, looking at the composition of your muscle, fat, bone, and organs to start. Holz said ideally, you could do this once a year or every single day, as it “aims for image quality comparable to MRI in many ways.”
He mentioned that one way he’d like to use it would be to see how his body changes in response to diet and workout changes, saying, “I’m not the most measured man on Earth yet, you know, but maybe I want to have that daily [measurable information].” A set of job listings advertises the company’s goal as trying to “build and launch the world’s first full-body ultrasound CT scanner, ultimately bringing safe, fast, and high fidelity preventative scanning to billions via a magical spa experience.”
The Midjourney Scanner was developed in a partnership with ultrasound tech company Butterfly Network, which said it uses “40 Butterfly Ultrasound-on-Chip imaging modules per system.”
The scanning process starts with stepping onto a platform that drops down into the water on rails through a ring of thousands of transducers that create ultrasonic waves. It then records the ripples passing through your body to analyze them and create detailed 3D images. The scan takes about 60 seconds. Holz said about a dozen people have been scanned so far.
It starts by stepping into a shallow pool of golden light. You then begin to descend into the water. Your body passes through a ring of underwater sensors, each acting like a dolphin, using its echolocation. The sensors send ultrasonic sound waves through your body from every angle. With enough waves, and enough angles, we form an image of what’s happening inside your body.
It combines those sensors with two petaflops of processing power. But after watching the livestreamed reveal, I’m still unclear on what Midjourney’s AI image generation tech exactly has to do with the Midjourney Medical effort, beyond an alternative business for otherwise-unused AI compute.
Holz hopes to put 10 of the scanners into a Midjourney Spa location in San Francisco’s Union Square that will open before the end of 2027 and offered to scan the hands of attendees at its launch event. The Midjourney Spa will have a gym, saunas, and cold plunges to go along with the hot tub–equipped scanning rooms where visitors will get into the water to be scanned.
He did mention that various medical applications would require FDA clearances, but for now, Midjourney Medical says it’s working on “body composition maps” that don’t require the same level of clearance as diagnostic imaging. It also says the “library of scans” users create can be shared with doctors, AI health tools, or others, and that, “We take data privacy seriously — more details on our data policies will come as we get closer to launch.”
Holz suggested that eventually these scans could become better than an MRI, without radiation, powerful magnets, or other complicating factors, to get a look at what’s going on inside people’s bodies “real fast.” In response to a question, he imagined a future where the FDA had a class of devices to look at “weird” things and allowed people to “just try to get as much data as we can.”
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