{"id":15886,"date":"2026-02-12T13:42:06","date_gmt":"2026-02-12T12:42:06","guid":{"rendered":"https:\/\/coreit.se\/okategoriserad\/why-is-additional-backup-needed-for-microsoft-365"},"modified":"2026-03-26T07:15:25","modified_gmt":"2026-03-26T06:15:25","slug":"why-is-additional-backup-needed-for-microsoft-365","status":"publish","type":"post","link":"https:\/\/coreit.se\/en\/faq\/why-is-additional-backup-needed-for-microsoft-365","title":{"rendered":"Why is additional backup needed for Microsoft 365?"},"content":{"rendered":"\n
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Why is additional backup needed for Microsoft 365?<\/h2>\n\n
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Supplemental backup is needed for Microsoft 365 because the built-in features focus primarily on availability and redundancy, not full recovery over time. Businesses are responsible for protecting themselves against accidental deletion, internal mistakes, ransomware and long-term storage requirements. External backup provides greater control over recovery, history and compliance. <\/p>\n <\/div>\n\n

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Background and explanation<\/h2>\n

Microsoft 365 is built for high availability and continuous operation, but the cloud service is not designed as a traditional backup solution. Responsibility for data is shared between Microsoft and the customer under a so-called shared responsibility model. <\/p>\n\n

Shared responsibility in the cloud<\/h3>\n

Microsoft is responsible for the infrastructure and operation of the service, while the company is responsible for its own data, permissions and recovery strategy.<\/p>\n\n

Protection against human error<\/h3>\n

Accidental deletion, incorrect synchronization and internal mistakes can lead to the risk of permanent data loss without external backup.<\/p>\n\n

Limited recovery history<\/h3>\n

Recycle bins and version history save data for a limited time, which is not always enough in case of late discoveries.<\/p>\n\n

Ransomware and internal threats<\/h3>\n

Version history can help in some cases, but advanced attacks or encryption over time can affect files over time and make it harder to find a clean version to restore.<\/p>\n\n

Compliance and audit requirements<\/h3>\n

Many organizations need to retain data for longer periods for legal, regulatory or business requirements.<\/p>\n\n

Fast and selective recovery<\/h3>\n

External backup enables the recovery of individual objects, entire accounts or complete environments with greater flexibility.<\/p>\n\n

Protection in case of account deletion<\/h3>\n

When user accounts are deleted, the associated data may be deleted after some time if no separate backup exists.<\/p>\n <\/div>\n\n

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Common reasons for external backup<\/h2>\n
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  • Shared responsibility:<\/strong> the company is responsible for its own data.<\/li>\n
  • Human error:<\/strong> Protection against accidental deletion and mishandling.<\/li>\n
  • Limited history:<\/strong> Built-in features save data for shorter periods.<\/li>\n
  • Cyber threat:<\/strong> Extra protection against ransomware and internal attacks.<\/li>\n
  • Compliance:<\/strong> Support for long-term storage and audit requirements.<\/li>\n
  • Recovery control:<\/strong> Flexible and fast recovery from incidents.<\/li>\n <\/ul>\n <\/div>\n\n
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    Related questions<\/h2>\n\n
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    Is Microsoft 365 built-in protection enough?<\/h3>\n

    They are sufficient for basic data protection but do not replace a complete backup strategy.<\/p>\n <\/div>\n\n

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    What data should be backed up?<\/h3>\n

    Email, OneDrive, SharePoint, Teams data and user accounts are particularly important.<\/p>\n <\/div>\n\n

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    Is external backup a requirement under the GDPR?<\/h3>\n

    The GDPR requires the protection of personal data, and backup is often part of this protection.<\/p>\n <\/div>\n\n

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    Does backup protect against ransomware?<\/h3>\n

    Yes, by enabling restoration to a pre-attack state.<\/p>\n <\/div>\n\n

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    Do small businesses need external backup?<\/h3>\n

    Yes, even smaller organizations risk data loss and disruption without backup.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n