Is My Mobile Phone Hacked?

You will know your phone has been hacked if you experience strange device behavior such as slower performance, overheating, strange pop-ups or apps appearing, or poor data connections. A combination of these issues is a likely sign that your device has been compromised.

Here are the main signs of a hacked phone:

1. It’s running slower than usual

One of the most common hacked phone signs is a drop in performance that leaves you wishing you could speed up your iPhone or Android. If websites are taking too long to load or if your apps are suddenly crashing, malware may be hogging your phone’s bandwidth or processing power.

2. Your phone feels hot

Is your phone overheating, even when you haven’t been actively using it? Phones can heat up during prolonged periods of intensive use, like while streaming or gaming for hours. But if it’s not you causing your phone to heat up, it may be a phone hacker.

3. The battery is draining faster than usual

If your phone’s battery is draining faster than usual, check if you have a lot of apps open in the background. Background apps can burn through lots of data, and you can save battery power by restricting background app data.

There are many ways to make your battery last longer, but if everything is otherwise normal, shorter battery life may be one of the signs of a hacked phone.

Here’s how to check your phone’s battery usage:

1. Open Settings > Battery to view usage details (this is called “Device Care” on some Samsungs).
2. Review apps and processes for any unusual power consumption.

4. You notice service disruptions

Experiencing the occasional dropped call or bad internet connection is common, but if these disruptions become more frequent, you need to find out whether the problem is due to widespread outages or your device.

• Check the service status on your provider’s website or app for reported outages in your area.
• Contact customer support directly to verify outage information or troubleshoot individual connectivity issues.
• Monitor social media platforms like Twitter or Facebook for updates from your provider or other users who may be experiencing similar issues.
• Stay informed through local news sources or community forums.

By taking these steps, you can better understand the nature of the disruptions and take appropriate action to resolve them.

5. Strange pop-ups appear

If you’re seeing more pop-up ads on your Android or iPhone than usual, your cell phone may be infected with adware, a type of malicious software that inundates you with ads — use a free adware cleaner to remove it. Remember, never tap any suspicious ads or links as this could trigger a malware download or lead to a hack.

6. Websites look different

Sometimes websites change the look of their homepage because of a holiday or special marketing campaign. But if many sites look different than normal, it could signify a hacked phone. Malware on your phone could be acting as a proxy between you and the web, redirecting your traffic to other sites.

7. New apps appear

While we’ve all downloaded apps we immediately forget about, one of the signs a phone hacker has accessed your phone can be the presence of apps you don’t recognize. If you don’t have a clean phone library, a single extra app with malicious intent may go unnoticed.

If you see an unfamiliar app, don’t open it — look it up online. And make sure to assess iPhone or Android apps for safety before downloading them.

8. Apps stop working properly

Hacked iPhone and Android apps can behave erratically with frequent crashes, unexpected app permission requests, or unusual messages. These pose significant risks to your mobile privacy and data.

In one prominent example, the gaming app Scary Granny was removed from the Play Store after displaying malicious activity that included serving phishing messages. Security researchers found that the app could activate and display full-screen ads without appearing in the device’s running applications list — unusual behavior for apps lacking admin privileges.

9. You receive unknown calls and texts

As well as receiving unknown calls and texts, a hacked phone may also experience trouble sending and receiving messages. Your phone can’t be hacked just with a regular call — but phone hackers can use fake text messages to infect your phone, and suspicious no caller ID calls may be part of a wider ploy to access your device.

Some iPhone hacked messages can even carry interaction-less iOS bugs that can infect your device without you clicking anything.

10. Strange messages are sent from your phone

Malware can spread via text messages from your phone by sending malicious links to your contacts list. When these links are clicked, the malware is installed on their devices, allowing it to propagate and infect even more devices.

If someone tells you that you’ve called or texted them when you haven’t, it’s possible your cell phone has been hacked. Conversely, be sure to inform friends and family if you receive odd messages or calls from them.

11. You’re running out of data

If you notice unexplained spikes in data usage, someone might be stealing your data for an attack. A hacked iPhone or Android device can use your data to transmit information collected from your phone.

Here’s how to check your data usage for unexpected spikes.

For iPhone users:

1. Go to Settings > Cellular/ Mobile Data.
2. Check app data usage for unusual data consumption.

For Android users:

1. Open Settings > Network & Internet/ Connections > Data Usage.
2. Review app data usage for anything suspicious.

12. You get unexpected charges

If you have unexpected charges that your phone company can’t account for, they may come from the extra data usage described above. If someone is using your phone remotely, they could be calling people or using premium services. Mysterious charges should be investigated to rule out cell phone hacking.

Check for unexpected phone bills by either logging into your mobile service provider account or checking your bank statements.

You should also check for unexpected charges linked to your Android or Apple ID accounts:

• Review credit card or bank statements for any unfamiliar charges.
• Monitor notifications from Apple Pay or Google Pay for unauthorized transactions.

Be aware of small “test” purchases. Hackers sometimes start with small unauthorized transactions before attempting to charge a larger amount.

Some mobile apps even lure you in with a free trial, which turns into a paid subscription with outrageous fees charged to your mobile app account days later. If this happens, unsubscribe from within the app — simply deleting it will not work.

Protect your phone against threats with AVG AntiVirus for Android or AVG Mobile Security for iPhone. Both apps offer additional layers of protection against hackers, helping to secure your phone and protect your personal information.

Install free AVG AntiVirus

Get it for PC, iOS, Mac

13. You’re locked out of accounts

Being locked out of your Apple ID, Google account, or Samsung account may indicate a hack. Follow these steps to investigate:

1. Check for unauthorized access. If you receive emails indicating suspicious account activity such as unrecognized log-ins, account changes, or modifications to your account settings, it could be a sign that a hacker has gained access.
2. Verify your account status. Log into your Apple ID or Android account using your credentials. If you’re unable to access your account or encounter unusual error messages, it may indicate a lockout due to unauthorized access.

14. Your camera or microphone keeps turning on

Unexpected camera or microphone activity may indicate unauthorized access to your phone’s system. When hackers remotely activate your camera or microphone without your knowledge they typically want to steal sensitive information.

Look for the colored dot at the top of your phone’s screen that signals your iPhone’s camera (green dot) or microphone (orange dot) is active. On Androids, a green dot is used for both.

If you suspect your phone has been compromised in this way, or any other, take immediate action to secure your device.

What to do if your phone is hacked

If your phone is hacked, turn off Wi-Fi, uninstall suspicious apps, and run an anti-malware scan. You can also reset your phone to factory settings. It’s crucial to act quickly to mitigate potential damage and stop the threat — to you and your contacts.

If your phone is compromised, uninstall apps, disconnect Wi-Fi, run a scan, and consider a factory reset.

1. Disconnect your phone from the internet

Turning off Wi-Fi and mobile data connections cuts the link between your phone and the hacker, preventing further device access and data theft.

Here’s how to disconnect your phone from the internet:

1. Open Settings > Network & internet or Connections, or similar options. For iPhone, scroll down from Settings and tap Wi-Fi or Cellular (you’ll need to disable them separately).
2. Toggle the switch next to Wi-Fi or Cellular Data to turn off the respective connection.

Keep your phone’s internet connection off until you have completed the steps below.

2. Remove suspicious apps

Whether you installed a new app shortly before you were hacked or a new app has suddenly appeared, you must uninstall it — it might contain Android spyware or other malware. Some Android spyware even works when your phone is off.

To remove apps from your Android:

1. Open Settings > Apps or Applications. On some Androids you then need to tap Manage apps.
2. Tap any app you don’t recognize or trust and select Uninstall to remove it from your device.

To remove apps from your iPhone:

1. Tap and hold the app icon and select Remove App.
2. Tap Delete App to uninstall it from your iPhone.

After removing suspicious apps, keep looking out for unusual behavior or signs of hacking, and use anti-malware software to help remove lingering traces of malware.

3. Run an anti-malware scan

You may need to remove malware from your phone, in which case you’ll need a reputable anti-malware or antivirus app that can detect and remove deeply embedded malware.

Here’s how to perform a full scan with one of the best free antivirus apps:

1. Install AVG AntiVirus for Android or AVG Mobile Security for iPhone.
2. Open AVG AntiVirus or AVG Mobile Security and tap Run Scan.
3. Follow the on-screen prompts to remove any malware that has been detected.

4. Factory reset your phone

If all else fails, perform a factory reset to restore the system to its out-of-the-box configuration. This will clear all other data on the device — meaning your photos, apps, and settings will also get wiped along with any malware.

To perform a factory reset on an iPhone:

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

To factory reset Android devices:

1. Go to Settings > General Management > Reset.
2. Tap Factory data reset and follow the prompts.

Once you restart your device, reconnect to a safe Wi-Fi connection and install a previous backup on your phone from before the hack — otherwise, you’ll simply reinstall a copy of the malware.

5. Review app permissions

After a factory reset, review any malware-corrupted app permissions and disable any unnecessary permissions.

To change app permissions on iPhone:

1. Open Settings and select the app you want to modify permissions for.
2. Tap the app to view its settings, then Toggle off the permissions you want to remove.

To change app permissions on Android:

1. Open Settings > Apps or Applications. On some Androids you then need to tap Manage apps. Select the app you want to modify permissions for.
2. Tap Permissions or App permissions, then tap the permissions you want to remove.