How to Secure Storage Using Azure Blob Storage and Azure Files

Shahzal Rehman — Sat, 13 Jun 2026 12:04:37 +0000

In modern cloud environments, data security is not optional — it is essential.

With increasing demand for scalable storage solutions, Microsoft Azure provides powerful services like Azure Blob Storage and Azure Files that allow organizations to store, manage, and secure business data efficiently.

This blog explores how to securely configure storage in Azure, focusing on key skills such as:

Creating storage accounts
Configuring Blob Storage and Azure Files
Enabling encryption
Setting up secure networking

These are also core skills assessed in the Microsoft Applied Skills: Secure Storage for Azure Files and Azure Blob Storage credential.

By the end, you will understand how to build a secure storage environment in Azure step-by-step.

Understanding Azure Storage Services

Azure provides two primary storage solutions for structured and unstructured data:

🔹 Azure Blob Storage

Used for:

Images, videos, documents
Backup and archive data
Large-scale unstructured data
🔹 Azure Files

Used for:

Shared file systems
Application data sharing
Lift-and-shift workloads

Both services are built on a highly scalable and secure cloud infrastructure.

Step 1: Create an Azure Storage Account

A storage account is the foundation of all Azure storage services.

Steps:
Open the Azure Portal
Search for Storage Accounts
Click Create
Fill required details:
Subscription
Resource Group
Storage account name (must be unique)
Region
Performance: Standard (recommended for learning)
Click Review + Create → Create

Once deployed, your storage account will act as a central container for Blob and File services.

Step 2: Configure Azure Blob Storage

After creating the storage account:

Create a Blob Container:
Open your storage account
Go to Data storage → Containers
Click + Container
Set:
Name: data-container
Public access level: Private (no anonymous access)
Upload Data:
Open container
Click Upload
Select files (images, documents, etc.)

✔ This ensures data is securely stored and not publicly exposed.

Step 3: Configure Azure Files

Azure Files provides shared file storage accessible via SMB protocol.

Create File Share:
Go to Data storage → File shares
Click + File share
Enter:
Name: shared-files
Tier: Standard
Upload Files:
Open file share
Upload files from your system

Now multiple virtual machines or users can access this shared storage securely.

Step 4: Configure Encryption

Security is a core part of Azure Storage.

Azure automatically provides encryption at rest, but you can enhance it further:

Enable Encryption:
Go to Encryption settings in storage account
Choose:
Microsoft-managed keys (default)
OR Customer-managed keys (advanced security)

This ensures all stored data is encrypted automatically.

Step 5: Configure Secure Networking

To protect data from unauthorized access:

Recommended Settings:
Disable public access if not needed
Enable Private Endpoints
Restrict access using Virtual Networks (VNets)
Steps:
Go to Networking tab
Select:
Public access: Disabled (recommended for production)
Add trusted virtual networks if required

✔ This ensures only authorized systems can access your storage.

Key Skills Covered (Applied Skills Alignment)

This setup helps you demonstrate the following competencies:

Creating and configuring storage accounts
Configuring Azure Blob Storage containers
Setting up Azure File Shares
Managing encryption settings
Securing storage with networking rules

These are exactly aligned with the Microsoft Applied Skills: Secure storage for Azure Files and Azure Blob Storage assessment.

Real-World Use Case

Imagine a company storing:

Customer invoices (Blob Storage)
Shared HR documents (Azure Files)
Backup system logs

Instead of using separate systems, Azure provides a central secure storage platform that is:

Scalable
Secure
Cost-efficient
Globally accessible

This is why cloud storage is becoming the backbone of modern enterprises.

Conclusion

Azure Blob Storage and Azure Files provide a powerful foundation for secure cloud data management.

By mastering:

Storage account creation
Blob and file configuration
Encryption
Secure networking

You build essential cloud skills that are directly applicable to real-world cloud administration roles and Microsoft Applied Skills certification.

If you're preparing for the assessment, focus on hands-on practice in the Azure Portal — because real understanding comes from doing, not just reading.

🔗 Learn From Microsoft

Secure and isolate access to Azure resources by using network security groups and service endpoints - Training | Microsoft Learn

Find out how Azure network security groups and service endpoints help you secure your virtual machines and Azure services from unauthorized network access.

learn.microsoft.com

Start practicing today in the Azure Portal:
Build a storage account, configure Blob Storage, and secure it using networking rules.

The more you practice, the closer you get to mastering Azure cloud fundamentals.

DEV Community: Shahzal Rehman

How to Secure Storage Using Azure Blob Storage and Azure Files

Secure and isolate access to Azure resources by using network security groups and service endpoints - Training | Microsoft Learn