European-sovereign cloud backup

Your data is your responsibility.
Microsoft won't save it.

CloudCitadel protects your Microsoft 365 data and Entra ID digital identity with air-gapped, GDPR-native backup from Brussels. One portal. One license. Unlimited storage. Total recovery in minutes — start with a free 30-day trial.

€5.6M
Avg. cost of a data breach in the EU (2025)
277 days
Avg. time to identify & contain a breach
68%
Of SaaS data loss caused by human error
The risk you're ignoring

Why Microsoft 365 Backup Is Your Responsibility

Under Microsoft's Shared Responsibility Model, platform availability is their job. Protecting your data, your identities, and your compliance? That's entirely on you.

🗑️

Accidental Deletion

A user deletes a critical SharePoint site or Teams channel. Microsoft's recycle bin expires after 93 days. After that, it's gone — permanently.

🔐

Identity Compromise

An attacker modifies Conditional Access policies or deletes admin accounts in Entra ID. Without backup, rebuilding from scratch takes days and creates security gaps.

🦠

Ransomware

Encrypted files sync to OneDrive and SharePoint. Native versioning can't roll back entire tenants. You need immutable, air-gapped copies to recover cleanly.

👤

Insider Threats

A departing employee bulk-deletes emails and files. By the time you notice, Microsoft's retention window may have closed. No backup means no evidence trail.

⚖️

Compliance Failures

GDPR, DORA, and NIS2 require demonstrable data protection and recovery capabilities. Retention policies are not backup — regulators know the difference.

⚙️

Misconfigurations

A change to Entra ID policies locks out thousands of users. Without identity backup, restoring the exact previous state is manual, slow, and error-prone.

The platform at a glance
99.9%
Guaranteed SLA uptime
Tier-3+ data centres
Unlimited storage
included per user
16+
Global data centre locations
you choose where data lives
25yr
Maximum retention
from 1 to 25 years
8
Languages supported
AI-powered in-portal help
Shared Responsibility Model

Microsoft 365 Shared Responsibility Model: What They Don't Protect

Most organisations assume Microsoft backs up their data. They don't. Here's who's actually responsible for what.

Responsibility
Microsoft
You (+ CloudCitadel)
Platform uptime & infrastructure
Data backup & long-term retention
Ransomware rollback & clean recovery
Entra ID identity & policy backup
GDPR / DORA / ISO audit compliance
Point-in-time granular restore
GDPR "Right to be Forgotten" workflow
Insider threat protection (30-day hold)
What CloudCitadel delivers

Microsoft 365 & Entra ID Backup Features

Enterprise-grade backup for both your Microsoft 365 collaboration data and Entra ID digital identity — managed from a single unified console.

📧

Microsoft 365 Backup

Full protection for Exchange, SharePoint, OneDrive, and Teams — including shared mailboxes, calendars, contacts, and meeting recordings. Item-level search by sender, subject, file type, or date.

🛡️

Entra ID Identity Backup

Backup and one-click restore for users, groups, directory roles, application registrations, enterprise apps, Conditional Access policies, administrative units, and audit logs.

🏰

Air-Gapped & Immutable

Backups stored on isolated, tamper-proof infrastructure with Object Lock technology. AES-256 encryption in transit and at rest. Completely separated from your production tenant.

📊

AI Security Dashboard

Continuous identity scoring, anomaly detection, and configuration drift monitoring. Compare current state against previous backups to catch unauthorized changes. Included at no extra cost.

One-Click Recovery

Restore individual items or entire tenants in minutes. Restore to original location or another location within the same tenant. Download files and folders directly.

🇪🇺

European Data Sovereignty

Brussels-based operations. Choose from 16+ global data centre locations including Paris, Frankfurt, Amsterdam, Madrid, and London. CO2-neutral data centre options powered by 100% renewable energy.

♾️

Unlimited Storage Included

No per-GB charges, no storage tiers, no surprises. Every license includes unlimited storage. Retention from 1 to 25 years with no additional cost. Shared and resource mailboxes that are unlicensed don't consume seats.

👤

Self-Service Restore Portal

Empower end users to restore their own emails, files, and contacts without involving IT. Reduces support tickets and accelerates recovery. Can be activated per user or per department.

🌐

Multilingual AI Support

In-portal support powered by AI, available in 8 languages. Integrated knowledge base with changelog and real-time assistance — no external ticketing required.

Transparent Pricing

Microsoft 365 Backup Pricing Calculator

No hidden fees. No "contact us for pricing." Choose your product and user count — see your cost instantly.

GDPR
Compliant
DORA
Ready
ISO
27001
NIS2
Aligned
SOC
2 & 3
AES
256-bit
MFA
Enforced
CO₂
Neutral option
Frequently Asked Questions

Microsoft 365 Backup FAQ

Answers to the most common questions about cloud backup for Microsoft 365 and Entra ID.

No. Under Microsoft's Shared Responsibility Model, Microsoft guarantees platform uptime but data protection, identity management, and compliance are the customer's responsibility. Deleted items are only retained for 30–93 days depending on the service, and there is no native point-in-time restore or ransomware rollback.
CloudCitadel provides air-gapped backup for Microsoft 365 (Exchange, SharePoint, OneDrive, Teams — including shared mailboxes and calendars) and Entra ID (users, groups, roles, apps, Conditional Access policies, administrative units, and audit logs). Available as standalone products or as a unified bundle with a single license and portal.
Yes. CloudCitadel is Brussels-based with EU data residency options across Paris, Frankfurt, Amsterdam, Madrid, and London. The platform supports GDPR Right to be Forgotten with a 72-hour grace process, and provides audit-ready compliance reporting aligned with GDPR, DORA, NIS2, and ISO 27001. Data centres are SOC 2 and SOC 3 certified.
Yes. CloudCitadel offers a fully functional 30-day free trial with no credit card required and no commitment. You get full access to the management portal, backup configuration, and restore capabilities. At the end of the trial, data is retained for 30 days before deletion.
Licensing is per user per month with unlimited storage included. Microsoft 365 backup can cover all or a subset of users — you choose which groups or departments to back up. Entra ID backup and the bundle require coverage of all active licensed users in the tenant, as identity protection is tenant-wide. Shared and resource mailboxes without M365 licenses do not consume seats.

Start Your Free Microsoft 365 Backup Trial

No credit card required. No commitment. Get a fully functional 30-day free trial — or book a personal walkthrough with our Brussels-based team.