If you've processed the file, there might be a partial or complete copy in swap space or equivalent on the drive, and I'm not quite sure what to do about that. Overwriting the file will probably leave nothing findable through the operating system, but that won't guarantee it. Renaming the file and moving it to an inappropriate directory will stop casual examination by somebody who isn't computer-savvy.ĭeleting the file will stop anybody from looking at it without easily available special tools, and will make it time-consuming for them to find it. For any security issue, you need to figure out what the risk is.
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