Content

• Steps
• Advice

This article shows you how to check if your iPhone is infected with viruses, spyware, or other malicious applications.

Steps

1. 

   Check if your iPhone is jailbroken or not. Jailbreak is a trick to remove many built-in limitations on the iPhone, allowing the device to install unorthodox applications. If you bought your iPhone from someone else, they may have jailbroken it to install malware. Here's how to check if the device is jailbroken:
   • Swipe down from the center of the home screen to open the search bar.
   • Type cydia into the search bar.
   • Touch the key Search on the keyboard.
   • If "Cydia" app appears in the search results, then your iPhone has been jailbroken. You can find out for yourself how to undo jailbreak your iPhone.

2. 

   
   
   Watch out for pop-up ads in Safari. If you suddenly see a lot of pop-up ads (ads that automatically appear on the screen), it is likely that the device has been infected.
   • Never click a link in a pop-up ad. This can result in a more severe viral infection.

3. 

   
   
   Be wary of applications that exit suddenly. If the applications you use frequently quit suddenly, it is possible that someone found a vulnerability in that application.
   • Regularly update apps on iPhone so you always use the highest security version.

4. 

   
   
   Looking for strange applications. The Trojan is a malicious application that is difficult to recognize, so you will need to take a closer look.
   • Swipe through the home screens and folders to check for strange apps or you don't remember installing them.
   • If you see an app that looks familiar but can't remember it installed, it's probably a malicious app. It's best to delete it if you don't know what it is.
   • To see a list of apps you have installed from App Store, please touch the icon Apps At the bottom of the store, tap your profile photo, then tap Purchased. If there is something on your phone that is not on this list (and not on Apple), it could be a malicious app.

5. 

   Check for extra extra charges. Viruses often run in the background, using your data to connect to the Internet. Check your billing statement to make sure that you are not being taken advantage of in your data usage, or are suddenly paying for sending SMS to billing number.

6. 

   Monitor battery performance. Since viruses often run in the background, they can drain your battery more quickly than usual.
   • You can learn how to check the battery for yourself. You can also search to see which apps are using the most battery power.
   • If you see an unfamiliar application, uninstall it immediately.
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Advice

• To ensure that you have the highest level of protection that helps prevent viruses, make sure your iPhone is running the latest version of iOS.
• If you find that your iPhone has been infected with a virus, it is best to restore it to its factory settings.