December 27, 2012

How to tell if your phone has been hacked [UPDATED]

Man using cell phone

We all know that smart devices are pretty clever these days, but does your smartphone or tablet seem to have a mind of its own? If you suspect that it does, it may be infected with mobile malware.

Here are a few questions to ask yourself to identify if your device is impacted:

Screen Shot 2016-02-12 at 11.02.13 AM Is your phone acting out of the norm? If your phone starts interrupting you with obtrusive advertising, sending text messages by itself your phone might be compromised. Malware is written to secretly control your device, and malicious apps have loose permissions that allow them to control more aspects of your device than it seems.

Screen Shot 2016-02-12 at 11.10.05 AM Are you noticing odd app icons on your phone? Some malware installs further applications to a device, which can be benign or malicious. If you notice any odd app icons on your phone, delete the app. If it’s an app you really think you want, you can always download it from an official app store just to be safe.

Screen Shot 2016-02-12 at 11.10.11 AMIs your phone locked and demanding money to unlock it? It might seem like an obvious one, but there is a type of malware called “ransomware” that will lock down your device and demand you pay up in order to get access again — holding it ransom. It oftentimes locks the device with an image from a familiar government agency, such as the FBI or CIA, or uses other scare-tactics to get victims to pay.

Screen Shot 2016-02-12 at 11.10.17 AMDid you recently accept an application download you didn’t prompt? Sometimes sneaky emails and text messages will trick you into downloading applications you didn’t intend to download. If you recently accepted a prompt to download an app, you may want to check if the text message or the email was really from the person or company you thought it was from.

Screen Shot 2016-02-12 at 11.10.26 AMNotice unfamiliar charges on your phone bill? A lot of us ask this question anyway, but it’s a good idea to regularly check the charges on your phone bill. Are there small but significant charges on it that you don’t recognize? Some malware is programmed to send paid SMS messages that get charged to your phone bill and deposited into the bank account of the malware writer.

What should I do?

If you answered yes to some or all of these questions, you can check if your phone has malware by using Lookout to check for any malicious applications. You can download Lookout for free from from Google Play or the Apple App Store. Lookout will tell you if your phone is infected by a malicious application so you can delete it and get your phone back to normal.

You should also follow these simple tips to keep your mobile experiences safe and sound:

Screen Shot 2016-02-12 at 11.02.13 AMKeep the software on your device up to date. Malware authors design their malicious apps to take advantage of weaknesses in the software running on your device. By keeping that software up to date, you minimize your risk of being a victim of malware.

Screen Shot 2016-02-12 at 11.10.05 AM Don’t download apps from third-party marketplaces. In the case of mobile apps, its always best to use official app stores, such as the Google Play Store and the Apple App Store. If you want to minimize risk of encountering malware, don’t download from random download sites you haven’t heard of before.

Screen Shot 2016-02-12 at 11.10.11 AM Be careful where you click. Some malware comes embedded in drive-by-download website links, SMS messages, spoofed emails, etc. that may automatically download a malicious app to your device without your prior approval. Safe Browsing in Lookout Premium will warn you of malicious sites.

Screen Shot 2016-02-12 at 11.10.17 AM Download a mobile security app to protect you. Downloading a security app, like Lookout, that has app and link scanning capabilities will help you be safer and better protected on your mobile device.

137 comments
  1. Chris Milton says:

    I was using Safari on my iPhone surfing the web when I got a message pop up saying a government agency had taken control if my phone. When I pressed ok another came up telling me to pay a fine. This happened over & over but it had not stopped. How do I know if this was a hack & whether they are still in my phone?

    • Meghan Kelly says:

      Hi Chris, it sounds like you may have been impacted by mobile ransomware. You can learn more about it here: https://blog.lookout.com/blog/2016/05/26/mobile-ransomware/

      Please feel free to reach out to our support team: support [at] lookout [dot] com

      If you are a Lookout customer, please include the email address associated with your account? That will help us locate your account more quickly.

      • Jans says:

        Hi I was logged out of my snapchat. Every time I tried to log in it will say wrong password. I will always change it with SMS (iMessage) and it will send me the code and then I will try to log in and it will still say wrong password and then I made a new one with the same number and the same thing happened so I made another with the email or number and I haven’t been hacked please how do I get back into my account

        • Meghan Kelly says:

          Hi Jans, I’m sorry to hear you’re having trouble logging into your Snapchat! I’d suggest reaching out to Snapchat’s support team to see if they can help you regain access to your account. You can try this email address: support [at] snapchat [dot] com

    • Cameron says:

      Somebody has been hacking my computer and I think the hacker blocked my space bar and it doesn’t work

    • Jim bob says:

      What I did but it took a long time to get to it Bec it kept popping up is factory reset ur device I had to do this 2 times Bec it happened more than once over the course of 6 months so just try to get to ur system settings and reset ur device and hopefully u got ur stuff backed up I put most of my stuff on a SD card which is mostly pics or vids or other documents but u can always download ur apps again

  2. marshallfox says:

    What numbers hacked me

  3. Janice Venberg says:

    I was sitting here looking at my home page on my GS4 and the screen scrolled left and my instagram Icon moved as if someone deleted it. Does someone else have access to my phone?

    • Meghan Kelly says:

      Hi Janice, I’m not sure what’s going on here. If you think you’ve been impacted by malware, please feel free to reach out to our support team: support [at] lookout [dot] com

    • I have a good feeling my device is tapped it can get hot my battery always stays charged low people can hear me

  4. Lilyan says:

    I was on ooVoo when my phone froze and I turned t off and turned it back on then I went back to ooVoo and it was like someone was pressing button’s. Something hit the home button and when to a drawing thing then went to my messages and quickly got out of it and then my phone went to the screen where it looks when I restart my phone and then it went black

    • Meghan Kelly says:

      Hi Lilyan. Sorry to hear that! That’s a jarring experience. If you think you’ve encountered malware, please feel free to reach out to our support team: support [at] lookout [dot] com

  5. Nim says:

    Can you explain how these ‘hackers’ are managing to get past your security and when its suppose to be in safe browsing mode also. Ive had a few security warnings from google about several sites not been safe etc, also been unable to get into ma banking app on several occassions due to another app stopping my access BUT nothing from lookout’s safe browsing as it states ‘everything ok. Safe site’ so what are people actually paying for? My phone was going mental for days, websites just closing, apps deleting by themself including lookout but when i reinstalled this app And done a scan there was no issues and once again everything was ok! Then unauthorised payments from my account, so im paying twice a month and still trying to access payments upto 2days after already getting a payment sucessfully!!

    • Meghan Kelly says:

      Hi Nim, I’m not sure what’s going on here, but I’m sorry to hear you’re having trouble. Please reach out to our support team and include the email address associated with your Lookout account? support [at] lookout [dot] com

      Hopefully we’ll be able to figure out what’s happening.

  6. Tracey Vega says:

    Everytime i get a text from anyone, it shows my boyfriends contact as well. Like if i text or he texted me.

  7. Tracey Vega says:

    Has he done something to my phone.

    • Meghan Kelly says:

      Hi Tracey, I’m not sure what’s going on here. Please feel free to reach out to our support team support [at] lookout [dot] com and include the email address associated with your Lookout account.

  8. Heaven says:

    Hi i was trying to go on my chrome but it kept saying website block attacker matey trying to get into your phone through this website and it was YouTube I called my mobile service metro PCS and they said to reset my whole phone and I did what do you think the case may be is someone trying to hack my phone and how do they do it

    • Meghan Kelly says:

      Hi Heaven, hmm I’m not sure what’s going on here. Would you reach out to our support team and include the email address associated with your Lookout account? support [at] lookout [dot] com

  9. Filip Stankowich says:

    My Samsung Core II keeps switching from app to app or leaving and coming back to an app,then shutting itself off.
    I have noticed It happens while its kinda hot/warm,could it be that or is it hacked??

    • Meghan Kelly says:

      Hi Filip, I’m not sure what’s going on here. Sorry to hear this is happening. Feel free to get in touch with our support team and include the email address associated with your Lookout account. support [at] lookout [dot] com

  10. Allyson Claus says:

    I have text messages on my cell that appear to be ones I wrote, my name was used. The recipients are people I don’t know.
    Is it possible for someone to hack my cell and do this?

    • Meghan Kelly says:

      Hi Allyson, I’m not sure what’s going on here! Please feel free to reach out to our support team and include the email address associated with your Lookout account. support [at] lookout [dot] com

  11. Jazmin says:

    Hi this is the second time that i go on my gallery and theres an album labeled “munkee” with pictures of me. No one ever goes on my phone and i have two apps for security and it says everything is fine. What could be doing this? Have i been hacked?? I have a password lock on my gallery and it still happens

    • Meghan Kelly says:

      Hi Jazmin, I’m not sure what’s going on here, unfortunately. You may need to get in touch with your carrier, but you should feel free to reach out to our support team as well. Please include the email address associated with your Lookout account: support [at] lookout [dot] com

  12. Cory says:

    Is it possible for someone to download a virus onto your phone or PC by whatever means and then, after you’ve shut down your computer or phone, have free reign inside with either the screen staying blank or your screen saver still uninterupted?

    • Meghan Kelly says:

      Hi Cory, unfortunately there is some malware out there that can work in the background while the screen is off. Hope that helps!

  13. Aaron says:

    My phone sent a txt message “L” to my girlfriend and her phone sent back and “L”. Obviously our phones have been hacked using some app exploit but after downloading Outlook and even trying the free premium trial upgrade, no malware was detected. What kind of exploit could the hackers have used?

    • Aaron says:

      Sorry ‘after downloading Lookout” not ‘outlook’ :)

    • Meghan Kelly says:

      Hi Aaron, I’m not sure what’s going on here. Would you please reach out to our support team and include the email address associated with your Lookout account? support [at] lookout [dot] com

  14. Caralyn Anderson says:

    I have had someone send texts to my contacts and delete their numbers from my phone. How is that possible. I phone has not left my side.

    • Meghan Kelly says:

      Hi Caralyn, I’m not sure what’s going on here, unfortunately. Feel free to reach out to our support team: support [at] lookout [dot] com.

  15. Tgyi says:

    My iPhone 5c has been acting weird for months now and I think I figured out how. I downloaded a battery app to my iPhone 5c when it was plugged in to my laptop, my iPhone 5c has been having screen flickering issues and sometimes when it does that it also either types if I have the keyboard open, or it clicks on apps or sometimes it just flickers then stops. But when I downloaded your app it says everything is fine. I have since deleted the battery app and your app and still have the issues. Also I think it has also affected my phones 4g LTE data speed because web pages don’t load as fast anymore and other things. I will also copy this and send it to support@lookout.com

    • Meghan Kelly says:

      Hi there, I’m sorry to hear you’ve been having trouble with your device. Hopefully our support team will be able to help you nail down the issue.

  16. Marie says:

    When I’m trying to read the chronicle my local news woman’s porn keeps popping up on my phone!it is absolutely disgusting I’m really upset by this

    • Meghan Kelly says:

      Hi Marie, I’m sorry to hear you’re having this problem. If you think you’ve been impacted by malware, please feel free to reach out to our support team and include the email address associated with your Lookout account: support [at] lookout [dot] com

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