Be warned. Actually, this is not new. Techie friends have long warned me that the data on the phone can be easily retrieved, even after you have done a factory reset. And, even if you use a more sophisticated program to wipe the data off your phone, it can still be retrieved, as long as the forensics person has more sophisticated tools.
The article below implies that iOS is more secure. The article in the Guardian explains this a bit further. I quote - "Apple's iPhones and iPads encrypt their data using the AES 256 algorithm, with a software key that is generated using information from the user. When the owner chooses to "erase all content and settings" to wipe an iPhone or iPad, the cryptographic key is deleted - meaning that although the data remains on the phone, it is encrypted beyond any capability to decode it."
Does this mean that the data on iOS is more secured? I am not entirely convinced. Therefore, the only logical conclusion is this. The only way to completely destroy data is to destroy your phone.
This article was also carried on the BBC here - http://www.bbc.com/news/technology-28264446
The Guardian newspaper article is here -http://www.theguardian.com/technology/2014/jul/11/factory-wipe-on-android-phones-left-naked-selfie-photos-and-worse-researchers-find
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These days, so many people buy new phones every year and sell back their old ones to a second hand retailers. I just shudder to think how much personal data is lurking around out there.
Happy Reading!
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