On Feb 27, 7:31 pm, Zak <d...@nomail.invalid> wrote:

> Suppose a document file (either a PDF file or TXT file) is sent by email
> from one company to another using a secure method to encrypt the file
> such as using WinZip with AES.
>
> The ZIP file is received on a PC which is in a shared area and the PC
> could be accessed overnight by other people.
>
> QUESTION: How can the recipient open or view the file WITHOUT having to
> later delete swap files, temp files, empty recycle bin, erase disk
> areas, etc. The recipients in my case are non-tecnical and this
> housekeeping will seem like a lot of new hoopla.
>
> QUESTION: Is there an app which will decrypt a WinZip file but not
> leave a trail of information?
<snip>

I suggest you use PGP or GnuPG instead. These applications have been
designed to eliminate, as far as possible, the vulnerabilities you
mention.

MT