Hybrid and Multi-Cloud: Why a Cloud Provider’s Promises Don’t Equal Your Data Security

After moving to the cloud, many companies develop a “psychological sense of safety”: the provider offers SLAs, stores multiple copies, and runs professional data centers-so our data should be safe, right?

In reality, it’s often the opposite. What cloud providers typically promise is “platform availability and infrastructure security.” But “your data recoverability, recovery after accidental deletion or ransomware, unified cross-cloud policies, and auditability” remain largely your responsibility. This is explicitly reflected in the cloud shared responsibility model: regardless of SaaS/PaaS/IaaS, customers are always responsible for their data and identities-the boundary simply shifts with the service type.

Aurreum states this very directly in its overview of Data Protection Suite (ADPS): even if public cloud providers offer data-protection commitments, enterprises are still responsible for their own data security, and third-party data protection fills the gaps in providers' data-protection policies and recovery capabilities.

Let’s break this down clearly: where the gap is, where the risks are, and what “baseline capabilities” you need to use cloud confidently and operate it reliably.

1. What do cloud providers usually “promise”?

Most cloud providers are good at-and willing to commit to-the following:

• Infrastructure-level security and availability: high availability for data centers, networks, power, hardware, and platform services.
• Platform-level disaster resilience: such as regional or availability-zone redundancy (but this is not the same as being able to restore your business data to any point in time).
• Assurance within the service boundary: for example, the durability of object storage or the HA architecture of managed cloud databases. These are important, but they mainly ensure “the platform stays up.” They do not automatically guarantee that your data can be restored under every type of incident.

2. Why isn’t that the same as “your data security”?

In hybrid/multi-cloud environments, companies usually don’t fail because “the cloud went down.” They fail because of far more common, business-proximate events like these:

A. Accidental deletion, unintended changes, bulk script mistakes

People will always make mistakes. A misconfigured permission setting or an automation script executed incorrectly can lead to mass deletion or overwriting. Platform HA won’t bring deleted data back exactly as it was-you need recoverable historical copies + auditable traceability.

B. Ransomware: not only encrypting production data, but also targeting backups

Modern ransomware often tries to delete or corrupt backups, or uses account privileges to wipe cloud snapshots and replicas. To withstand this type of attack, you need immutable (WORM) copies, offline/remote copies, and a fast recovery path.

That is the thinking emphasized by Aurreum ADPS: backup data can be replicated to different locations and different storage media-including offline storage-and it supports continuous log protection and point-in-time recovery, restoring databases to a specific moment before the attack.

C. Multi-cloud fragmentation: you “can’t see it, can’t govern it, can’t fully audit it”

In hybrid/multi-cloud, the hard part is often not whether you have backups, but whether you have:

• Inconsistent policies (one set for Cloud A, another for Cloud B, and yet another for private cloud)
• Insufficient visibility (what is protected, whether the latest backup succeeded, whether alerts were handled)
• Broken audit trails (who did what, when, and through which path)

Without unified control and auditing, it becomes difficult to prove to management or compliance auditors that you are truly recoverable.

3. Five baseline capabilities you must build for hybrid/multi-cloud

If you only remember one checklist, treat the following five items as the “entry ticket” for cloud data security:

• Unified management & visibility: one console and one operational view across on-prem, private cloud, and public cloud.
• Encryption & key ownership: encryption in transit and at rest, with clear responsibility for who holds and controls private keys.
• Immutable backup (WORM): at least one copy stored on non-erasable, non-rewritable storage.
• Fast recovery path: the ability to bring services back first (Instant Recovery/BMR) rather than waiting for slow data rehydration.
• Closed-loop auditing & alerting: who did what, and whether anomalous behavior can be detected, notified, and traced.

4. How Aurreum turns these into usable product capabilities

Using ADPS as an example, Aurreum packages the most essential hybrid/multi-cloud requirements into standard capabilities:

• Web console + real-time dashboard: manage backup services from any device, and view protected resources, jobs, alerts, and storage capacity directly in the dashboard.
• Configurable auditing & alerting: audit user operations and service activities, and notify anomalies via email or SMS.
• 256-bit AES encryption: uses AES-256 for backup and data transfer; under a private-key mode, the key is controlled only by the user (not stored by Aurreum), strengthening the privacy boundary by design.
• Multi-tenant isolation: suitable for multi-department and multi-sub-account organizations, allowing tenants to operate independently with data isolation.
• Hybrid multi-cloud support: connect private cloud via guided configuration and integrate with major public clouds (such as AWS, Microsoft Azure, Google Cloud, IBM Cloud), then back up data to multiple storage targets.
• WORM immutability + rapid recovery: store backup data in non-erasable, non-rewritable object storage (WORM) in cooperation with cloud storage, and combine BMR with Instant Recovery to restore services quickly on local servers, private cloud, or public cloud.

If your goal is “one platform to protect all workloads,” ADPS consolidates backup/restore, DR, replication, CDP, CDM, and BMR into a unified platform, emphasizing flexible hybrid policies, accelerated backups, and instant recovery.