data_safety.md

1. Using password protected upload system and immediate reject on wrong password to prevent malicious data transfer.
2. Using temp file on upload to prevent unwanted data corruption or loss on cancelation of upload.
3. Deleting file has both Delete permanently and Move to recycle bin option and confirmation on Delete permanently.
4. Using temp directory to create zip file and clearing to each re-run.
5. (still improving) prevent access to unauthorized directory (parent directory or other directory).