Why a Backup Strategy for Microsoft Office 365 is Essential for Security, Compliance, and Business Continuity

Source: IDC, 2019
©2019 IDC #EUR145096519 2

In the era of digital transformation, cloud — particularly SaaS — is considered as a breath of fresh air
around the user interface. It offers easier collaboration and is considered as transformative.
IDC research finds that email and collaboration is the most mature business process within SaaS, and
it is the most adopted at 61%. As one of the most popular SaaS products, Microsoft Office 365
adoption is accelerating, and its use is expanding beyond Exchange to more services including
SharePoint, OneDrive, and Teams. While O365 is fast becoming the center of business productivity, a
backup and recovery strategy is just an afterthought. 6 in 10 users of O365 IDC spoke with at an event
do not have a data protection plan for their O365 estates or rely on Microsoft's native capabilities. In
conversations with O365 users, IDC observes that many users confuse Microsoft's availability SLAs to
backup strategies, while others don't see the need to think of backup for cloud because it is "different"
Regardless of whether the data is on-premise or in cloud infrastructure/SaaS such as O365, the ultimate
responsibility of data protection lies with the customer or the data owner — you. Adopting O365 without
enterprise-grade backup is a risky strategy.
The first step is to understand the responsibilities of Microsoft and O365 user organizations. Figure 2
illustrates how Microsoft's basic responsibility is limited to infrastructure levels — infrastructure
availability, security, and access controls — while all data responsibilities are on the user to ensure
data security, privacy, and retention.

Why Backup Office


365 Vendor-Customer Shared Responsibility at a Glance
Source: IDC, 2019
©2019 IDC #EUR145096519 3

Given Microsoft's responsibility and supporting technology is limited to infrastructure levels,
organizations are exposing themselves to the following risks if they are without third-party backup

  • Data loss and security breaches. O365 is no exception to security breaches — it is vulnerable to internal threats (e.g., accidental deletion of data, actions by disgruntled employees, or access from ex-employees) as well as external threats (e.g., malware or ransomware). According to IDC research in 2018, 69% of organizations have suffered successful malware attacks within 12 months, 39% of which involved ransomware. Malware attacks are a reality today, and SaaS tools are no exception. Almost half (49%) of organizations have suffered from an unrecoverable data event in the past three years. An enterprise-grade backup strategy can give enterprises an option to recover from security breaches by using granular recovery.
  • Retention and regulatory compliance exposures. Microsoft offers a 90-day retention policy that does not meet the more stringent data retention regulations for certain industries such as financial services, healthcare, retail, and government. Having a third-party backup can help organizations set their own retention policies according to their business needs and remain compliant with European data regulations.
  • Lack of data control in hybrid deployments. Full oversight and control of data is a boardroom priority and a first step toward becoming data-driven. Without backup, organizations do not have an exit strategy or freedom from SaaS lock-in because they are not in complete control of their data.

In addition, many customers have a blend of on-premise and SaaS in which they adopt Exchange
online, but they are yet to migrate SharePoint to SaaS. In other cases, if there are mergers or
acquisitions, different teams on different versions of email and collaboration suites can make data
protection more challenging in hybrid deployments without unified backup. Having a unified data
protection for hybrid environment can ease the adoption of O365.

Without data protection extended to SaaS, enterprises are exposing O365 data to compliance issues,
data loss, security vulnerabilities, and business continuity risks. In addition, integrating SaaS into
enterprise data protection can help unify data management and develop a foundation to become datadriven.
Backup for fast-growing SaaS such as O365 is no longer an option — it is imperative for security and
data control. Many data protection vendors have started offering backup for O365 environments and
are fast-expanding to add more O365 services. When investing, organizations need to ensure that the
backup solution they choose offers:

  • Flexibility and choice. The business should have the freedom to use existing on-premise capacity for O365 backup or leverage another cloud for cloud backup.
  • Features. It should provide incremental backups, granular recovery, automation, and policybased retention capabilities.
  • Breadth of service. The solution should be capable of managing and protecting hybrid deployments and ease the full adoption of SaaS.
  • Complementarity to O365. It should have deep integration with O365 and the customer's existing data protection environment.
  • Innovation. There should be additional security features such as access control, SaaS usage metrics, and multifactor authentication for additional security.
  • Scale. Ability to scale up or down without capex as business and data demand changes and as SaaS is rolled out more widely within a company.

©2019 IDC #EUR145096519 4


Related Research

  • European Data Replication and Protection Software and Services Market Shares, 1H18: Cloud Services Get an Edge (IDC #EMEA44902219, March 2019)
  • What AWS's Launch of its Own Backup Solution for Hybrid Cloud Means for the Data Protection Market (IDC #EMEA44901319, March 2019)
  • New Commvault CEO: Sanjay Mirchandani Takes the Helm (IDC #lcUS44862419, February2019)

This IDC Perspective assesses how data protection dynamics in SaaS change, particularly as services
such as Microsoft Office 365 adoption accelerates, and its use expands beyond Exchange to other
services that include SharePoint, OneDrive, and Teams to become key to business productivity.
"While O365 is fast becoming the center of business productivity, a backup and recovery strategy is an
afterthought. Relying on Microsoft's native backup capabilities and infrastructure-level uptime features
is a risky strategy because regardless of where the data is, it is the company's responsibility," said
Archana Venkatraman, research manager, IDC European Datacenter. "Without an enterprise-grade
backup strategy for O365, enterprises are exposing themselves to risks such as ransomware,
accidental loss of data, lack of data control, compliance exposures, and threats to business continuity."

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