source: office blog

Microsoft has rolled out a fresh new update for users in the Preview Build of Office Insider Program of iOS. The latest build version is 2.8 (17112700).

This is a preview of the December 2017 feature update for Word, Excel, and PowerPoint for iPad and iPhone which brings Confident protection.  This feature requires Office 365 subscription. Check out the changelog below.

A tablet and a phone with zoomed in bubbles showing options available to set access permissions to Office documents

Confident protection 

Using persistent protection, you can now prevent sensitive information from being viewed, printed, edited, or copied by unauthorized people. You can protect documents, spreadsheets, and presentations without leaving Word, Excel, or PowerPoint.

New in: Word Excel PowerPoint