) How to Stop Someone from Spying on Your Phone? How to Block Spyware?

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How to Stop Someone from Spying on Your Phone

Spies today don’t need binoculars and fake beards. Instead, they spy on you through your phone, using spyware and other malware. Under your nose, hackers can steal your personal data, like login credentials and financial information. But you can strike back! Read on to learn how to detect and stop phone spying, then try Clario’s AntiSpy app to protect your phone from spyware and other threats.

Table of contents

How to block spyware on your cell phone and prevent spying

Using spyware, hackers can secretly steal your sensitive data from your phone. Considering smartphones contain everything from login credentials to email to online banking details, the fallout from phone spying can be severe. That’s why the best strategy against spyware is to avoid it altogether using tools and cybersecurity best practices.


Here are some ways to block spyware on your phone and prevent spying:

Now let’s take a closer look at how to use these strategies:

Scan your device for spyware apps

If you want to learn how to check a phone for spyware, start with a dedicated cybersecurity app. Spyware can be hard to detect without the right tools. Cybersecurity apps are designed to search your devices for spyware and other malware. Plus, some spyware apps can stop a threat in real time—before it does any damage.

Change your passcode

How secure are your passcodes and passwords? Unfortunately, spying is often committed by those closest to us. So if you’ve given out your passcode or if it’s easy to guess, you could fall victim to spying. Change your passwords regularly to keep spies off your trail. And create complex, multi-character passwords that are impossible to guess.

Check if you are sharing your phone's location

Hackers can use your phone’s location to monitor your physical movements. Or they can use the information to create social engineering attacks that can trick you into revealing more personal data. Always check to make sure your apps and services aren’t revealing your location without your knowledge.

Stop sharing your location in Google Maps

Location sharing on Google Maps is a great way to link up with friends and family—but hackers can also use this feature to spy on you. If you’re not actively using the feature, you should review who exactly you are sharing your location with—and stop sharing with anyone you don’t trust.


Here’s how to stop sharing your location in Google Maps:

  1. Open the Google Maps app on your phone
  2. Tap your profile picture or initial on the top right
  3. Tap Location Sharing.
Google Maps app on iPhone showing the location sharing option after tapping profile picture.

From here, you’ll see a list of people who you’re currently sharing your location with. If anyone on the list seems out of place, stop sharing your location.

Google Maps app on iPhone showing a list of people who currently have access to Location Sharing

Stop sharing your phone's location in Apple Find My

Apple’s “Find My” feature allows Apple users to locate missing devices—but it can be abused for spying. The feature can be used to monitor your movements or for unauthorized device access if someone has your passcode.


Here’s how to stop sharing your phone’s location in Apple’s “Find My” feature:

  1. Open the Find My app on your Apple device
  2. Tap the Me tab on the bottom
  3. Toggle off Share My Location.
iPhone showing the map screen of Apple's Find My app with the Me tab highlighted. The next screen shows location sharing options, with

Check the logged-in account in the Google Chrome browser app

When browsing the internet with Google Chrome, make sure you’re using an account you own. If you use an account that belongs to someone else, they can monitor your internet activity.  


Here’s how to check the logged-in account in Google Chrome:

  1. Open the Google Chrome app
  2. Tap the three dots in the bottom right-hand corner
  3. Tap Settings
  4. You’ll see the name and email address of the current logged-in account in the first section.

If you’d like to change your logged-in account, tap the name and tap Sign Out at the bottom.

 Google Chrome app on iPhone in the settings tab, showing a list of available usernames to sign in. The  Sign Out option is highlighted.

Check for apps that use your location, microphone, or camera

Apps with permission to use your location, microphone, or camera can potentially put you at risk of spying. If fallen into the wrong hands, hackers can use these apps to track your location and remotely record audio and video of you. To be safe, you should disable these permissions for apps that don’t require them.


Here’s how to check for apps that use your location, microphone, or camera on an iPhone:

  1. Go to the Settings app on your iPhone
  2. Scroll down and tap Privacy & Security
  3. You’ll see categories for Location Services, Microphone, and Camera. Tap on each and review app permissions.
An iPhone in the iOS settings menu, highlighting Privacy & Security. The next screen shows the Privacy & Security options. The next screen shows a list of apps with permission to use Location Services.

Are you being watched through your phone? It’s not always easy to tell. That’s why it’s crucial to learn how to know if someone is watching you through your camera.


Here’s how to check for apps that use your location, microphone, or camera on an Android phone:

  1. Go to the Settings app on your Android phone
  2. Scroll down and tap Apps or Apps & Notifications, depending on your phone
  3. Tap App permissions or Permissions
  4. You’ll see categories for Location, Microphone, and Camera. Tap on each and review app permissions.

Hackers can also use hidden apps designed to spy on you. Because they’re designed to avoid detection, they can be tricky to spot. Use our guide to learn how to find hidden spy apps on Android and block spyware on your cell phone.

Use a VPN

A VPN (Virtual Private Network) will fully encrypt your internet connection, so it can help deter spies and snoops from trying to intercept your personal data—especially on public Wi-Fi. Plus, a VPN will hide your IP address and prevent network monitoring, which can help stop your internet service provider (ISP) from spying on your internet activity.


A VPN is most effective when used in combination with other cybersecurity tools. Clario’s AntiSpy features a suite of powerful security tools that work in synergy to protect your phone from spying and other threats. It features data breach detection tools and a rooting detector (Android only) to scan for device tampering.


Defend your phone from spying using Clario’s protection:

  1. Download Clario AntiSpy and choose a subscription to create an account
  2. On the dashboard, click Safe browsing and Install the Clario Chrome extension
Install the Clario AntiSpy extension

3. Add your Clario Secure Browsing extension to Chrome

Add your Clario Secure Browsing extension to Chrome

Enjoy four pillars of safe browsing: web security, anti-malware protection, ad blocker, and anti-tracking capabilities.

Update your device and apps

Device and app updates often contain patches for known security vulnerabilities. Without updates, hackers and spies can take advantage of these vulnerabilities to gain unauthorized access to your device and data. Also, some updates can help detect spy apps and stop them from collecting data from your phone.

Use two-factor authentication

Two-factor authentication (2FA) is an additional layer of security to protect accounts and services. Accounts secured with 2FA will ask for a password first, then another form of authentication, like a one-time verification code sent to your phone. Enabling 2FA decreases the chances of unauthorized access to your accounts or devices, even if your password is stolen.

How to tell if someone is spying on your cell phone

Though they can be subtle, there are telltale signs that reveal if someone is spying on your phone. Spyware apps are designed to avoid detection, but they almost always directly affect phone performance and services—and this can’t be hidden.  


Here’s how to see if someone is spying on your phone:

  • Increased data usage: Is your mobile data usage suddenly spiking up? Some spy tools and techniques require an internet connection to transfer your data in the background. Hackers could be leaching your data to run spyware apps. Read our guide on how to know if someone is spying on your phone to learn how to check your mobile data usage.
  • Battery drains quickly: Are you reaching for your phone charger more often than usual? Background spy apps can consume a large amount of battery power. If your phone’s battery is draining more rapidly than usual, it could be a sign of spying.
  • Slow or usual activity: Running multiple apps will slow down your phone—this includes background spy apps. The system resources that a spy app requires could lead to slow performance, crashes, and freezes.
  • Unusual activity: Changed settings, apps starting on their own, and a flickering screen when your phone is on standby are all possible signs of unauthorized device usage. Take inventory of your apps and make sure they aren’t causing these issues.
  • Appearance of unknown apps: If you're seeing apps on your home screen that you never downloaded, it could be spyware or due to unauthorized phone access. Either way, research the app and,  if it turns out to be a threat, immediately remove it.
  • Strange sounds during a call: Some spy apps can record your phone calls by remotely enabling your microphone. Though covert, they often reveal themselves with static, clicking sounds, or hissing. Listen closely to your calls for these signs of spying.


If you catch someone spying on your phone, it’s crucial to take immediate action. Hackers can take a lot with very little time—and when you realize what’s happening, it might already be too late. That’s why a dedicated anti-spy app, like Clario’s AntiSpy, is key for stopping spies in their tracks.


Our comprehensive online security app is designed to protect your calls, messages, location, contact list, camera, and more from unauthorized access. The iOS and Android version will scan and monitor your online accounts for data breaches, plus they feature anti-spy protection to reduce threats. Phone spies are crafty; stay one step ahead of them with Clario’s AntiSpy.

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