Researchers from Mimecast have recently observed a campaign where threat actors are using a somewhat rarely seen but easy method to distribute malware using Microsoft Excel's standard file encryption ...

Safeguard your Excel data in 2026 with these six practical tips for sheet protection, file encryption, and preventing ...

I have a number of spreadsheets that I use to store sensitive information. Usernames, passwords, etc. These documents are password protected themselves, but if they're anything like "protected" PDFs, ...