Securing Microsoft 365 apps

The Microsoft Office suite includes some of the world's most popular productivity apps used today, with programs such as Outlook, OneDrive, Word, Excel, PowerPoint, OneNote, SharePoint, and Teams. According to https://www.statista.com/, Microsoft Office 365 controls around 47.5% of the market share for major office suite technologies worldwide, and is used by over 731,000 companies in the United States alone. This wide usage rate makes it a great attack target to build exploits and should not be overlooked when building out security controls. According to https://www.cvedetails.com, there were 63 named CVE vulnerabilities for Microsoft Office in 2021 alone, with three having a score of 9.3 or greater. The following URL shows the total of all Office vulnerabilities since 1999: https://www.cvedetails.com/product/320/Microsoft-Office.html?vendor_id=26.

In addition to enforcing security controls through baselines, it's important to install security...