How To Tell If Someone Is Spying On Your Phone (And What To Do About Spyware)

If you suspect that someone has hacked your phone and is monitoring your activity, there are warning signs and actionable steps you can take to remove spyware and reclaim your privacy.
We receive compensation from the products and services mentioned in this story, but the opinions are the author's own. Compensation may impact where offers appear. We have not included all available products or offers. Learn more about how we make money and our editorial policies.

Have you ever suspected someone may be spying on your phone? While this is a common concern for high-profile people like government officials, celebrities, and CEOs, it happens to everyday people as well. Security tools are a solid preventative measure, but you may have already been hacked.

Androids and iPhones have different vulnerabilities, but the indicators are often the same. Read on to learn the signs that someone is spying on your phone and discover the best anti-spyware protection for you.

In this article
How to tell if someone is spying on your phone
How to remove spyware from your iPhone and Android devices
10 tips for preventing spyware
FAQs
Bottom line

How to tell if someone is spying on your phone

A hacker doesn’t need physical access to your phone to install spyware, although some apps — like mSpy, which is meant to be an extreme form of parental monitoring — require physical access. Know that it’s always illegal for a person to monitor your phone activity without your knowledge or consent. If your phone is being monitored, you should follow up with the police.

Phishing texts and emails, malware downloaded knowingly or unknowingly, and security vulnerabilities on your device — and even just using public Wi-Fi — are all ways a hacker can gain access. Without the proper security tools, like a virtual private network (VPN), hackers can get into your phone when using shared Wi-Fi.

Downloads from unverified or third-party sources, jailbroken iPhones, and even tainted downloads straight from the Google Play store have all been found to contain malware that can be used for spying.

Check out signs and indicators that someone may have put spyware on your phone.

Unexplained battery drain

Your phone’s battery will deplete as you use it throughout the day. However, if you notice a considerable amount of drain when you aren’t using it, that could be a sign of spyware software running in the background, using your resources, and draining your battery.

Higher data usage

Like the battery draining quicker, spyware apps also use data on your device. If you notice increased data usage, this may indicate that spyware is sending data from your phone to a hacker.

Unusually long shutdown time

Before your phone can turn off, it has to finish sending its data packets. Try turning your phone off immediately after making a call, browsing the web, or sending a text or email. If your phone takes longer to shut down than usual, it may be sending data packets to a hacker before being able to turn off.

Hot battery

Batteries can get hot when you’re charging and using your phone simultaneously. You may notice your battery getting hot even when you aren’t using your phone. This can indicate that the phone is working to send information to another source.

Unrecognized apps

You should be aware of all the apps on your phone. If there’s one you don’t recognize or haven’t seen before, delete it immediately. Make sure to check app folders to see if anything you didn’t install is buried on your device.

Garbled text messages

Sometimes, spyware sends and receives texts that are supposed to be hidden from normal text viewing. Spyware apps aren’t infallible; sometimes, these texts get through and are visible. If you see a text with many strange symbols, letters, and numbers, this could indicate a hack.

Additional noises during calls

When you make a call, if you hear odd clicks, voices, beeps, static, etc., that could indicate someone is listening in. It could be a poor signal or connection, but if it happens regularly, you may be compromised.

Concerned that someone is remotely accessing your computer without your knowledge? Learn how to safeguard your privacy and remove hackers with our guide.

Decreased battery performance

Similar to battery drain, the health of your battery could be degrading faster than what’s normal for your phone’s make and model. Schedule some time with a certified technician or reseller to see if they think it’s normal or if something nefarious could be happening.

Unusual phone activity

Your phone turns off and on, apps open and close, and notifications come through on silent or DND mode could all be indications someone is spying on you. If your phone seems to have a life of its own even when you aren’t using it, you may be compromised.

Unrecognized camera or microphone use

Most phones have a small orange or green dot at the top of the screen when the camera or microphone is in use. If you see this indicator on when you aren’t using those two features, someone may be listening to or recording you through your phone.

Distorted websites

Websites do look different on mobile devices as opposed to desktop or laptop computers. If the websites on your phone look different from how they normally look on your phone, it may be malware affecting your access.

Unrecognized third-party activity

Is there a message posted to your socials you didn’t post or new Snapchat contacts you didn’t add? This may indicate that a spy is using your device remotely and accessing your third-party apps.

Pop-ups

Pop-ups on your phone aren’t something you should ignore. They could indicate malware meant to trick or spy on you. Any pop-up should be treated like malware and investigated.

Lag times or long loading

Your phone will slow down over time. It’ll also slow if it’s near storage capacity or doing heavy processing. But if your phone is lagging or sites and apps are taking longer than normal to load, spyware may be the culprit.

Unauthorized rooting or jailbreaking

You can root an Android and jailbreak an iPhone to increase your access to content, but there are many reasons why you shouldn’t. If you’ve done this yourself, you’re opening your device up to malware and easier hacking. Someone may have hacked you if you haven’t done this, so look to see if your device is now rooted or jailbroken.

If you haven’t rooted your Android or jailbroken your iPhone, we suggest not doing it. You’ll be bypassing the natural protections built into the operating system and leaving yourself open to more vulnerabilities.

How to remove spyware from your iPhone and Android devices

Unless your device has been rendered inoperable, there’s still time to repair the damage yourself and safeguard against any future issues. There are several steps you can take to remove malware. We suggest starting with the least intrusive method and moving to more advanced removal processes until the problem is resolved.

How to remove spyware from an iPhone

Apple iPhones are much safer and less prone to malware than Androids. While it’s not impossible to hack an iPhone, it is much harder.

Users who do find themselves in need of spyware removal have a few options:

  1. Update your software.
  2. Manually remove malware from your iPhone.
  3. Perform a factory reset (last resort).

Update your software

  1. Go to Settings > General > Software update.
  2. Download and install the update.

Manually remove malware from your phone

  1. Restart your phone.
  2. Go to Settings > Safari > Clear History and Website Data.
  3. Remove unknown or suspicious apps.

Perform a factory reset

  1. Go to Settings > General > Transfer or Reset iPhone.
  2. Tap Erase All Content And Settings.
  3. Tap Continue.

Reverting to factory settings should be a last resort. Remember, restoring your phone from a backup could reinstall the malware.

How to remove spyware from an Android phone

Unfortunately, Android phones are much easier to compromise than iPhones. Warnings are being issued regularly regarding new malware, including ransomware and spyware, found in apps in the Google Play store. Android users may need antimalware tools more often than their iPhone-using peers.

  1. Use a spyware (malware) removal tool.
  2. Manually remove malware from your Android.
  3. Update your phone.
  4. Factory reset your phone (last resort).

Use spyware removal tools

  1. Download a malware removal tool that’s compatible with Android.
  2. Install it on your phone.
  3. Run the application.
  4. Quarantine and remove files.

Manually remove malware from your phone

  1. Reboot in Safe Mode.
  2. Delete all suspicious or unknown apps.
  3. Check administrator positions.

Update your software

  1. Open Settings.
  2. Click Software Update.
  3. Download and install the update.
  4. Turn on auto-updates so you don’t miss future security updates.

Factory reset

  1. Go to Settings > General Management > Reset.
  2. Click Factory Data Reset OR Erase All Data.
  3. Enter your password.

Reverting to factory settings should be a last resort. Remember, restoring your phone from a backup could reinstall the malware.

10 Tips for preventing spyware

Prevention is much easier than remediation. Whether you’ve just removed malware from your phone or you’re looking for preventative measures, the tips below will help keep your smartphone secure:

  1. Never root or jailbreak your phone.
  2. Use biometric or two-factor authentication.
  3. Use a password manager and share credentials only through encrypted methods.
  4. Keep a passcode on your phone so it can’t be accessed without your knowledge.
  5. Do not click links in texts or emails unless you know the sender.
  6. Do not open attachments unless you know the sender.
  7. Only download apps, files, or programs from reliable sources.
  8. Restrict Airdrop to contacts only.
  9. Use an ad blocker with tracker blockers.
  10. Use a premium antivirus with a VPN, and always enable the VPN when using shared Wi-Fi networks

The best anti-spyware protection for smartphones

A good VPN and antivirus bundle will keep your phone secure from hackers, malware, and any other malicious content on the internet. Below are some of our favorites.

  • Surfshark One: Surfshark offers a quality VPN with the option to bundle antivirus software into your subscription. It has broad compatibility and can even get you fun extras like the ability to unblock geo-restricted streaming catalogs.

Get Surfshark One | Read Our Surfshark One Review

  • Norton 360: This household name offers more than reputable antivirus software. The included VPN will protect your phone from the perils of shared Wi-Fi. Additionally, you’ll get a powerhouse antivirus that works whether you have a blue bubble or a green one.

Get Norton 360 | Read Our Norton 360 Review

  • Bitdefender: Bitdefender’s free product is great, but for mobile compatibility you’ll need to upgrade to a paid plan. The VPN comes included as well as other extras like parental controls. An app that protects your entire family? Yes, please.

Get Bitdefender | Read Our Bitdefender Review

Full Suite of Cybersecurity Tools on Unlimited Devices
4.8
Editorial Rating
Learn More
On Surfshark One's website
All-In-One
Surfshark One
Starting at $2.49/mo + 4 months extra
  • Blocks ads and pop-ups, including cookie consent requests, while browsing
  • Can also browse ad-free without a digital footprint with the Surfshark Search engine
  • All-in-one app includes VPN, antivirus scans, alternative ID creation, malware protection, and more on unlimited devices

FAQs


+

How do phones get infected with spyware?

There are a variety of ways your phone can get infected with spyware. Someone can directly install it physically on your phone. More likely, however, you’ll get spyware from going on shared Wi-Fi without a VPN, downloading a compromised app or file, picking up malware while browsing the internet, or responding to a phishing text or email. Additionally, jailbroken iPhones and rooted Android devices are more likely to be infected because they bypass the manufacturer’s built-in protections.


+

What is the code to see if someone is spying on your phone?

There are a few codes meant to help with spying, but they may not work on all phone makes and models. If you aren’t satisfied with your results from these codes, try the methods we’ve listed for removing spyware.

  • Code to check for call forwarding number: *#67#
  • Code to check if phone is tapped: *#21#
  • Code to turn off all forms of phone redirection: ##002#
  • Code to show unknown connections and tracking (for Android): *#*#4636#*#* or *#*#197328640#*#*
  • Code to show unknown connections and if someone is tracing you (for iPhone): *3001#12345#*

+

Can someone watch you through your phone without you knowing?

Maybe. Hackers can access your camera if they get into your phone, but recent software updates have equipped phones with green and orange dots that indicate when the microphone and camera are being accessed. If those dots are on and you aren’t using those features, follow our steps for removing spyware.


+

Can someone monitor my phone without me knowing?

Yes. Some apps are marketed as extreme parental controls. Still, they’re just legal forms of spyware that can access everything on your phone, including listening to you through your phone’s microphone without your knowledge. It’s illegal for another person to install this software on an adult’s phone without their knowledge. If you find an unrecognized app on your phone, you should report it to the police.

Apart from apps, malware can be installed remotely on your phone when you use shared Wi-Fi without a VPN, click links from phishing texts and emails, jailbreak or root your phone, download malicious apps and files, and visit infected websites. From there, someone can monitor your phone without you knowing.


+

How can I know if someone is monitoring my phone?

If someone is monitoring your phone, you’ll see clues and signs. Slower phone and app loading, unusual battery drainage, strange noises and voice on calls, your phone doing things of its own volition, and a host of other indicators could mean someone is monitoring your phone.


+

Will a factory reset remove a hacker?

Yes, a factory reset can remove a hacker by wiping everything installed on your phone. Be careful, however, because most people restore their phones from a backup. This could cause you to reinstall the malware that allowed the hacker access.

Bottom line

It’s possible to hack and monitor both Android phones and iPhones, but more likely with an Android. If you don’t root or jailbreak your phone, you reduce your chances of being hacked, but it’s still possible. Make sure you always use security software to catch potential hackers before they become a problem.

The best antivirus software for mobile devices includes a VPN for an encrypted connection and can keep your phone clean. Make sure to take care of any warning signs as soon as possible, and if you think your phone has been hacked, contact your local police station immediately.

Comprehensive Protection With Database Updates Every 3 Hours
4.1
Editorial Rating
Learn More
On Surfshark AntiVirus's website
Antivirus Software
Surfshark AntiVirus
Starting at $2.49/mo + 4 months extra
  • Powerful app that offers 24/7 virus and malware protection that won’t hog your CPU or RAM
  • Includes webcam protection, fully customizable security, full or quick scans, and more
  • Compatible with Windows, Mac, and Android on unlimited devices

Author Details
Mary is a seasoned cybersecurity writer with over seven years of experience. With a B.S. in Liberal Arts from Clarion University and an M.F.A. in Creative Writing from Point Park University, she educates audiences on scams, antivirus software, and more. Her passion lies in educating audiences on helpful ways to protect their data.