I thought that there was spyware on my phone so I did a factory reset.

Would the spyware be gone or it will still exist even after a factory reset?

2 Answers 2


Chances of malware surviving a factory reset are very, very small, but not zero.

If you have rooted your phone, there is a small chance that malware can copy itself to the system partition, so it would survive a factory reset. Some anti-theft software will do the same for legit reasons: if a thief steals a phone and performs a factory reset, the owner can still track the phone.

If you are resetting the phone, you can do a firmware upgrade: download the latest firmware package from the phone manufacturer, and follow the instructions to upgrade the firmware. This will wipe out any trace of anything on the phone.

  • I have not rooted my phone then can it survive? Dec 4, 2020 at 13:20
  • 1
    @10E_13_Bipin I believe this question has been answer by ThoriumBR. Please read again his answer.
    – A. Hersean
    Dec 4, 2020 at 14:09

It is most likely gone. Very hard to persist after a factory reset. If you rooted your phone, chances are that the malware "fakes" the factory reset but that seems pretty advanced.

It could get reinstalled if you resync an account which automatically installs certain apps.

How do you know there is spyware on the device?

  • I dont know i used a public wifi thatswhy i was insecured Dec 4, 2020 at 13:08
  • 2
    Using a public wifi does not mean you got spyware. You usually get spyware by installing apps outside of Play Store, and on rare cases, installing some from the Play Store...
    – ThoriumBR
    Dec 4, 2020 at 13:13
  • Probably nothing to worry about in your case. Tons of people use insecure WiFi. It is possible that someone saw some unencrypted traffic but installing spyware is pretty unlikely. Even most important apps do not use unencrypted traffic anymore. There are exceptions ofcourse.
    – Silver
    Dec 4, 2020 at 13:29
  • I didnt installed any apk i just browsed internet and saw some videos online! Dec 5, 2020 at 1:37

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.