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Can a File somehow end up inside of another file/files


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#1 DeepLuv

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Posted 27 September 2013 - 09:31 PM

My question is a security question.

If someone has a file on his/her computer that contains personal/secure information, for example a text file that contains passwords and account numbers, or an audio recording of a conversation where account numbers and passwords were spoken out loud...  Is it possible for fragments of the secure file to end up getting stuck inside of another file or group of files on the same pc...making it possible for someone to reconstruct the secure file from the fragmented pieces and/or view its original contents?  Or could it be possible even for the entire secure file to somehow end up inside of another larger file on the same computer...making it easy for someone to view the secure information....(by the way I only used a text file or an audio file as an example...it could be any file containing secure data)...My simplified concern is this...If you have a file that contains information that you want to keep secure...is there anyway that pieces of this file, if not the whole file it self, could end up inside of another file or a group of files on the same computer that the file containing the secure information was created on?...thus making it a security risk to even share mp3s on a computer that ever had any secure information on it...since maybe there'd be a change ur credit card numbers and passwords might somehow end up in one of those mp3s that ur sharing in a peer to peer file sharing program online.....or do things not work like that at all? Thank you to anyone who responds.



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#2 Romeo29

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Posted 04 October 2013 - 10:12 PM

It all depends on the program you are using to access the files. For example, Windows (starting from XP) creates a hidden file thumbs.db that contains thumbnails of all the images inside a folder. If you delete the original pictures through some other program or command line, and do not open the folder in Windows Explorer, this file still stays there. If you share the folder, this file gets shared too. Your information gets leaked.

 

If you use a computer for banking online or shopping online (any kind of financial transaction), then do not ever use that computer for P2P file sharing.






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