The Pentagon is looking at expanding its use of Microsoft software across all components starting next month, according to a draft memo obtained by Axios.

Why it matters: The tech upgrade is spurring concerns among competitor cybersecurity and software vendors interested in coveted defense contracts.

Zoom in: The Pentagon is pushing all department components to start upgrading to Microsoft's E5 licenses by June 3 to support its ongoing zero trust transition, according to the memo.

The E5 license gives organizations access to Microsoft 365 Defender and other tools that help with insider risk management, identity protection and more. If the memo is published...