For all those who have used the factory reset option in Android phones, hoping that it would permanently delete all your personal data, here’s a shocker. Its reported from a study by Cambridge University that using that option does not erase all your data and a part of it, be it SMS’s, email’s, pictures and videos, along with contact information from your social media accounts such as Facebook and Twitter can still be easily retrieved. This gives your personal information to a third party when you have passed on the phone or sold it as used.
This research was undertaken across 21 different smartphones devices across five different manufacturers and between Andriod operating versions 2.3 till 4.3.
The survey also gave the same results even when full encryption was used and at times, even the master token to access Google Apps was available even though a reset was done. This puts about 500 Million Andriod phones at risk and feedback from individual manufactures are awaited.