You cannot patch human nature. Run a "Spreadsheet Awareness Drill" quarterly:
: For sensitive reports, you should use Excel’s built-in encryption by selecting File > Info > Protect Workbook > Encrypt with Password VBA Vulnerabilities
: Passwords used to protect specific sheets within a macro-enabled workbook can often be found by searching the VBA code for the "unprotect" command. Automated Reporting
This specific query instructs Google to filter results using three main parameters:
Stay safe. Check your public folders. And please, stop using Excel as a password manager.
When executed, this search can reveal everything from internal company contact lists to unprotected database login credentials that were accidentally uploaded to public-facing servers. The Dangers of "Spreadsheet Security"