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Your phone shares data at night: Here’s how to stop it

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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.

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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.

TIKTOK AFTER THE US SALE: WHAT CHANGED AND HOW TO USE IT SAFELY

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.

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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 

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  • Open Settings
  • Tap Privacy & Security
  • Tap Location ServicesMicrophoneCamera 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.

AI WEARABLE HELPS STROKE SURVIVORS SPEAK AGAIN

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 LocationMicrophoneCamera 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.

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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

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  • 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.

TAX SEASON SCAMS SURGE AS FILING CONFUSION GROWS

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

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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.

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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.

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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.

Take my quiz: How safe is your online security?

Think your devices and data are truly protected? Take this quick quiz to see where your digital habits stand. From passwords to Wi-Fi settings, you’ll get a personalized breakdown of what you’re doing right and what needs improvement. Take my Quiz here: Cyberguy.com.

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.

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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.  

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Technology

Acer’s launching a Linux handheld for streaming your PC games

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Acer’s launching a Linux handheld for streaming your PC games

The Acer Nitro Blaze Link might run on Linux, but it’s no Steam Deck. Acer says it’s a “streaming-first handheld and companion device,” like a PlayStation Portal for your PC. Announced ahead of Computex on Friday, it’s launching in Q4 2026 with a 7-inch (1920 x 1200) display, Wi-Fi 6, just 1GB of LPDDR4 RAM, and 8GB of eMMC storage. That’s technically not even enough RAM to run Stardew Valley, but the Blaze Link isn’t meant for playing games locally.

Logitech launched a similar handheld a few years ago, the Logitech G Cloud, that cost $350, included 4GB of RAM and 64GB of storage, and ran on Android. It was a tough sell at that price considering that its performance was dependent on a good internet connection.

Acer hasn’t yet announced a price for the Nitro Blaze Link. But its specs suggest it could cost significantly less than proper handheld gaming PCs — which have been skyrocketing in price — potentially offering a more affordable and streaming-first alternative.

Correction, May 29th: The Nitro Blaze Link was announced ahead of Computex 2026, not at it.

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Fake grant email promises $4.5 Million but could steal your identity

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Fake grant email promises .5 Million but could steal your identity

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It shows up in your junk folder with a subject line that practically yells at you: “ATTENTION 1!!!” That alone should raise suspicion. Still, the message quickly escalates. It claims to come from the IMF (International Monetary Fund) and says you are approved for a $4.5 million grant.

That is where things start to fall apart. This type of scam is designed to trigger both excitement and urgency. It also pushes you to hand over sensitive information before you stop to think.

Let’s break down exactly what this email says and why each part signals trouble.

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NEW EMAIL SCAM USES HIDDEN CHARACTERS TO SLIP PAST FILTERS

A fake IMF grant email promises millions of dollars while asking recipients to share personal details and identity documents. (Rawf8/Getty Images)

The sender behind this IMF scam email

The email claims to be from the IMF. Yet the reply address is a Gmail account. That mismatch matters.

Legitimate financial institutions do not use free email services for official communication. They also do not ask you to reply to a personal inbox for something this serious.

Why the subject line is a warning sign

“ATTENTION 1!!!” is not how a global financial organization communicates. It is how scammers try to grab you fast.

Urgency lowers your guard. When you feel pressure, you are more likely to respond without verifying anything.

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The greeting reveals a mass email

The message opens with “Attention: Sir/Madam.” If your name were truly selected for a multimillion-dollar payment, the sender would use it.

Generic greetings often mean the email was blasted out to thousands of people.

How the story tries to hook you

The email mentions debts tied to contracts, inheritance, lottery and loans. That wide net is intentional.

It increases the odds that something in the message feels familiar. Once that happens, the scam starts to feel personal.

The $4.5 million promise is the bait

The promise of $4.5 million is not random. Large numbers create excitement. They also make you more willing to overlook obvious problems.

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Real financial grants do not appear out of nowhere like this.

YOUR EMAIL DIDN’T EXPIRE; IT’S JUST ANOTHER SNEAKY SCAM

Scam emails may use real organization names, official titles and urgent language to pressure people into responding quickly. (Pekic/Getty Images)

Why scammers use real names

The email mentions IMF Managing Director Kristalina Georgieva. That sounds official, which is the point.

Scammers often include real names or titles to make fake messages feel credible. It is a shortcut to trust.

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The writing and grammar feel off

Phrases like “Kindly reply me directly” and awkward sentence structure stand out. One odd sentence might not mean much. However, repeated issues like this point to a lack of professional communication.

Major institutions have strict standards for how they write.

The most dangerous request in this email

This email requests:

  • Full name
  • Address and location
  • Phone number
  • Age and occupation
  • A copy of your passport or driver’s license

That is everything needed for identity theft. Once someone has those details, they can open accounts, target you with more scams or impersonate you. 

The payment method adds false legitimacy

The email promises a bank-to-bank wire transfer. That detail adds a layer of realism. It also sets up the next step. Many scams later ask for “fees” to release the funds.

You send money, and the payment never arrives.

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Even the spam excuse is part of the scam

At the end, the email tries to explain away the biggest red flag: “If you have received this message in your SPAM/BULK folder, it is simply because your ISP has introduced restrictions. We urge that you treat it as a matter of urgency.” That is not a reassurance. It is a warning sign.

Scammers know their messages look suspicious, so they try to explain it away before you question it.

THE ONE THING SCAMMERS CHECK BEFORE TARGETING YOU ONLINE

Users should delete suspicious grant emails, avoid links and verify claims directly through official organization websites. (Photographer: Wei Leng Tay/Bloomberg via Getty Images)

How to stay safe from scam emails

Scams like this follow a pattern, and once you know what to look for, you can shut them down quickly before any damage is done.

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1) Ignore and delete the message

Do not reply or engage in any way. Even a quick response tells scammers your email is active, which can lead to more targeted attacks. The safest move is to delete it and move on.

2) Do not click links or download attachments

Scam emails often hide malicious links or infected files. One click can take you to a fake login page or install malware on your device. If you were not expecting the message, do not interact with anything inside it.

3) Use strong antivirus software

Strong antivirus software adds another layer of protection. It can flag suspicious emails, block dangerous websites and stop malicious downloads before they cause harm. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com

4) Never send personal documents

No legitimate organization will ask for your passport, driver’s license or other sensitive documents through an unsolicited email. Sending that information can open the door to identity theft and financial fraud.

5) Look closely at the sender

Do not rely on the display name alone. Check the full email address carefully for misspellings, random numbers or free domains like Gmail. Small details often reveal a fake. 

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6) Go directly to official sources

If the message seems important, verify it on your own. Type the organization’s website into your browser or use a trusted contact method. Do not use the links or contact details provided in the email. 

7) Remove your personal data from the internet

Scammers often rely on publicly available information to make their messages feel convincing. Data removal services can reduce what is out there, making it harder for criminals to target you in the first place. 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

8) Turn on two-factor authentication

Add an extra layer of security to your accounts. With 2FA enabled, a stolen password alone is not enough for someone to get in. This simple step can stop many attacks before they start.

9) Monitor your financial accounts and credit

Check your bank statements and credit reports regularly. Look for unfamiliar charges, new accounts or changes you did not make. Catching fraud early can limit the damage.

10) Consider placing a credit freeze

If you think your personal information was exposed, a credit freeze can help protect you. It prevents new credit accounts from being opened in your name without your approval.

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11) Add identity theft protection

Because this scam asks for your name, address, phone number, age, occupation and a copy of your passport or driver’s license, identity theft protection can help you spot trouble faster. A good service can monitor your credit files, alert you to new activity and help you recover if someone uses your information to open accounts or commit fraud in your name. See my tips and best picks on Best Identity Theft Protection at Cyberguy.com

12) Report the scam

Mark the email as phishing in your inbox. This helps your email provider block similar messages and protects other people from falling into the same trap.

Join CyberGuy Live: Lock Down Your Phone in 30 Minutes (Saturday, June 13, 10 am ET)

Your phone holds your email, passwords, photos, banking apps and personal data. In this free, live online class, Kurt the CyberGuy will walk you step by step through simple phone security fixes you can do in real time. You’ll learn how to improve your privacy settings, spot the latest phone scams, use trusted security tools and walk away with a simple checklist to stay protected. Register here: CyberGuyLive.com

Kurt’s key takeaways

This email tries hard to look official. It uses a real organization, a real name and a convincing story. Still, the cracks show up quickly once you slow down. A Gmail reply address, a massive payout, a vague greeting and a request for identity documents all point in the same direction. Scams like this rely on one thing: getting you to act before you think. Take a second look, and the whole thing falls apart.

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If a message promises millions and asks for your personal information, would you pause long enough to question it, or would the urgency pull you in? Let us know by writing to us at Cyberguy.com

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  • Get my best tech tips, urgent security alerts and exclusive deals delivered straight to your inbox.
  • For simple, real-world ways to spot scams early and stay protected, visit CyberGuy.com trusted by millions who watch CyberGuy on TV daily.
  • Plus, you’ll get instant access to my Ultimate Scam Survival Guide free when you join.

Copyright 2026 CyberGuy.com.  All rights reserved.

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Blue Origin explosion is a major setback for NASA’s Moon plans and Amazon’s Starlink competitor

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Blue Origin explosion is a major setback for NASA’s Moon plans and Amazon’s Starlink competitor

While Blue Origin investigates the root cause behind last night’s spectacular explosion of its New Glenn rocket, it’s already clear that this will be a major setback for NASA’s Moon base plans and Amazon’s fledgling Leo space internet constellation.

The incident occurred at about 9pm at Blue Origin’s Florida launch site during a hot-fire test, where seven engines in the booster stage are lit while keeping the 322-foot-tall rocket fixed to the launchpad. The explosion and ensuing fireball severely damaged the only launchpad Blue Origin has for its New Glenn rocket.

“It’s too early to know the root cause but we’re already working to find it,” wrote Blue Origin boss Jeff Bezos on X. “Very rough day, but we’ll rebuild whatever needs rebuilding and get back to flying. It’s worth it.”

According to sources speaking to Ars Technica, the transporter-erector and one of the lightning towers at LC-36A may not be salvageable. “New Glenn almost certainly will not launch again in 2026, and frankly a launch during the first half of 2027 would be heroic given the launch site concerns,” writes Eric Berger, senior space editor at Ars Technica.

Such a delay would affect NASA’s Moon base plans. NASA announced on Tuesday that New Glenn would deliver a robotic lunar lander as soon as fall 2026. In 2027, Blue Origin is also scheduled to participate in the upcoming Artemis III mission, which will see astronauts docking their Orion capsule with lunar landers developed by SpaceX and Blue Origin.

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“Spaceflight is unforgiving, and developing new heavy-lift launch capability is extraordinarily difficult,” said NASA administrator Jared Isaacman on X. “We will work with our partners to support a thorough investigation of this anomaly, assess near-term mission impacts, and get back to launching rockets.”

The New Glenn rocket that exploded Thursday night was being prepped to carry 48 Amazon Leo satellites — the largest batch ever slated for a single launch — into low-Earth orbit on an upcoming mission. The satellites were not onboard.

To date Amazon has launched just over 300 of the 1,618 Leo satellites the FCC requires by July 30, 2026. Amazon has applied for an extension to keep its license.

Amazon had been counting on New Glenn’s massive payload capacity and reusable boosters to accelerate a launch schedule that is already behind. Without its primary workhorse, Amazon will be forced to rely more heavily on secondary providers like United Launch Alliance (ULA) and Arianespace — and its chief rival, SpaceX.

“Sorry to see this,” wrote fellow billionaire spaceman Elon Musk on X. “I hope you recover quickly.”

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