Cloud security vendor Skyhigh estimated nearly nine out of 10 enterprises — 87.3 percent — are now using Office 365. According to research released in connection with the public unveiling of Windows 10, the same report shows 93.2 percent of employees are still using on-premises versions of the Microsoft Office apps.

While Office 365 has "tremendous traction in enterprises, it is in the early innings and there is a massive opportunity ahead to transition all employees to Office 365,” Skyhigh noted in a statement.

Moving enterprise content to Office 365 is difficult, and it represents a huge business opportunity for companies in the business of migration or securing business content.

The research found just 6.8 percent of users have migrated to Office 365 with enterprises starting by department or line-of-business followed by the rest of the company as needs arise.

Hybrid Rules

In the medium term, a large number of enterprises are going to be living and working with on-premises and online applications in hybrid environments — and rumors that the next edition of SharePoint will be the last on-premises version of SharePoint are greatly exaggerated.

Skyhigh's research coincides with the release of Windows 10 today. 

“Windows 10 will offer deeper integration with OneDrive and the new Universal Office apps for Windows 10 (the new version of Office that supports desktop, tablet, and mobile devices) will require an Office 365 subscription. We expect that this requirement will lead many companies to accelerate their Office 365 migrations,” the research concludes.

The research was based on an analysis of Skyhigh’s 21 million users, the vast majority of whom spoke favorably about Office 365, particularly in relation to its advantages for mobile workforces.

It showed that large organizations collaborate with, on average, 72 business partners through Office 365 across a range of verticals that include high-tech, manufacturing, energy, financial services and business services.

Data in Office 365

It also showed that a staggering 1.37 terabytes of data are uploaded into Office 365 every month by average organizations, or the equivalent of one billion Word documents. Of all that data, 17.4 percent contains sensitive information broken down as follows:

Personally Identifiable Information (PII) includes Social Security Numbers, phone numbers and home addresses, as well as financially sensitive data, business plans and even source code.

Microsoft has invested heavily in Office 365 security over the past two years. But even the best intentioned security systems are no match for the carelessness of some users. The research found that enterprises have an average of 143 files that with “password” in the file name. 

The result that many enterprises are also adding an additional layer of security to their Office 365 deployments.

In a separate cloud security report from Skyhigh also released recently, it noted the average enterprise now uses 1,083 cloud services (up 46. 7 percent from last year) with only 7 percent satisfying the security requirements of enterprises and 15.4 percent of cloud services offering multi-factor authentication.

The same report also shows the average organization uses 171 collaboration cloud services, including Office 365, Gmail and Evernote and that collaboration services are followed in order of popularity by file sharing with 57 services, content sharing with 43 services and social media with 32 services.