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August 27, 2025

Securing Hybrid Cloud: Best Practices for 2025

Security isn’t just a setting. It’s a strategy.

 

Let’s be honest: hybrid cloud is the future.

But that doesn’t mean it’s easy.

For many Australian businesses, the move to hybrid cloud came less from a grand strategy and more from necessity, with legacy systems on-prem, SaaS in the cloud, and the creeping sprawl of workloads across environments.

Now, IT leaders are being asked to do the impossible:

  • Keep everything secure
  • Keep performance high
  • Keep the architecture agile
  • And keep costs low

Right!?

And to accomplish all of this while navigating a threat landscape that doesn’t care where your data lives, only that it’s vulnerable.

That’s where this guide comes in.

We’re not here to scare you with threat stats (though yes, they’re brutal).

We’re here to give you a clear, practical security framework, built on real-world insights, not vendor pitch decks.

And we’ll show you how Amaze, as a sovereign, secure, Aussie-owned cloud partner, can play a powerful role in your hybrid strategy.

 

 

What is a Hybrid Cloud Environment, Really

 

Let’s quickly define it:

A hybrid cloud is a computing environment that combines on-premises infrastructure (or private cloud) with public cloud services. It gives you flexibility, control, and scalability.

But it also creates more complexity, especially around security, compliance, and visibility.

It’s like running two (or more) IT worlds at once and trying to secure the border.

 

The Security Risks of Hybrid Cloud

 

Why is securing a hybrid environment so challenging?

Here’s what’s happening on the ground:

 

  • Fragmented Identity & Access Control: Users exist in multiple systems. Over-permissioned accounts become attack vectors.
  • Inconsistent Security Posture: Your on-premises firewall rules don't follow workloads into the cloud.
  • Shadow IT & Unauthorised SaaS Use: Apps and services spin up without IT oversight.
  • Data Sovereignty Gaps: Sensitive data replicated offshore by public cloud services can breach Aussie compliance standards.
  • Misconfigurations: Gartner estimates 99% of cloud breaches are due to customer misconfigurations — not provider flaws.

 

But there’s good news: Hybrid cloud doesn’t have to be a security liability.

With the right practices, and the right partners, it can be your strongest architecture yet.

 

 

Best Practices for Securing a Hybrid Cloud Environment

 

Here’s a top level look at a security playbook, built for Australian businesses navigating hybrid complexity, regulatory obligations, and performance pressures.

 

1. Start with Zero Trust — Not Just Firewalls

Zero Trust isn’t a buzzword, it’s a mindset.

“Never trust, always verify.”

Every user, device, and service must prove who they are and what they need access to, every time.

How to implement in hybrid environments:

  • Deploy identity-based segmentation across both cloud and on-prem environments.
  • Use Multi-Factor Authentication (MFA) everywhere, especially for admin and privileged accounts.
  • Implement least privilege as a default: no one gets access they don’t need.

Where Amaze helps:

Our private cloud can integrate with enterprise IAM platforms and supports federated identity protocols like SAML and OpenID Connect, so your Zero Trust policy is enforceable, not theoretical.

 

2. Centralise Visibility and Monitoring

Without a single pane of glass, hybrid environments become blind spots.

You need real-time visibility into:

  • Access logs
  • API calls
  • Data movement
  • Configuration changes
  • Threat alerts across cloud and on-prem

Best Practice Tools:

  • SIEM platforms (like Splunk, Sentinel, or Elastic)
  • Cloud-native monitoring (e.g. OpenStack telemetry, AWS CloudTrail)
  • Endpoint Detection & Response (EDR)

Amaze's approach:

We can offer integrated logging and monitoring APIs across our OpenStack environment and support third-party SIEM integrations, which gives you full-stack visibility across your hybrid architecture.

 

3. Encrypt Everything – In Transit and At Rest

Encryption isn’t optional anymore. It’s foundational.

  • In-transit: Use TLS 1.2+ for all communications across hybrid links.
  • At-rest: Enable disk-level encryption for cloud volumes, on-prem storage, and backups.
  • For sensitive industries (legal, health, finance), encryption should be customer-managed, not provider-controlled.

Why it matters:

Even with encryption, if your keys are managed offshore or by third-party cloud vendors, your data may still be exposed.

How Amaze protects you:

We offer sovereign key management on our Australian-hosted infrastructure, with full control remaining in your hands. No hidden access. No offshore dependencies.

 

4. Standardise Configuration Management

Inconsistent configurations are a leading cause of breaches.

Adopt Infrastructure-as-Code (IaC) and use policy-as-code to enforce consistent, secure setups across environments.

Tools to consider:

  • Terraform
  • Ansible
  • Open Policy Agent (OPA)
  • HashiCorp Vault for secrets management

Amaze’s platform support:
Our OpenStack cloud integrates seamlessly with IaC tools, allowing you to version-control configurations and enforce security policies by default, not by hope.

 

5. Secure Your Hybrid Connectivity Channels

Your hybrid cloud isn’t just about apps, it’s about the network glue connecting them.

Make sure you:

  • Use dedicated VPN or MPLS links, not public internet, for hybrid connections.
  • Implement firewall rules, IDS/IPS, and network segmentation across cloud and on-prem.
  • Deploy cloud-native security groups to control lateral movement between instances.

With Amaze:

We provide secure, high-availability interconnects to your on-prem environment, backed by Aussie-hosted networking, so no traffic leaves jurisdiction unless you want it to.

 

6. Audit. Simulate. Repeat.

  • Security isn’t a one-and-done. Your hybrid cloud security must evolve as fast as your infrastructure.
  • Run regular penetration tests
  • Audit IAM permissions monthly
  • Simulate breaches (red team / blue team exercises)
  • Test DR and incident response readiness

Amaze helps here, too:

We partner with clients for hybrid security simulations, including simulated cloud misconfigurations, insider threat exercises, and access audits.

 

 

Don’t Forget Data Sovereignty & Regulatory Compliance

For Australian businesses, it's not just about being secure, it's about being compliant.

Where is your data stored?
Who has access to your backups?
Is your DR site offshore without you knowing it?

Amaze’s difference:

  1. 100% Australian-owned
  2. Carbon-neutral data centres
  3. Two decades of infrastructure and data centre build expertise
  4. No offshore replication
  5. Compliant with ISO 27001

 

Securing Hybrid Cloud Isn’t Optional. It’s Strategic.

In today’s environment, your security posture is your business posture.

Every new cloud tool, integration, or deployment adds complexity, but it also offers an opportunity: to build security in from the start, with the right architecture, the right visibility, and the right partner.

Why Amaze?

We’re not a hyperscaler. We’re a local partner with a secure, OpenStack-based private cloud that integrates seamlessly with your on-prem and public cloud environments, without sacrificing sovereignty, control, or compliance.

Whether you're building from scratch or modernising legacy infrastructure, we'll help you secure your hybrid cloud with confidence.

 

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