Are you using multiple cloud services in your organization? If so, you’re not alone. Around 90% of large enterprises have a multi-cloud strategy. And 60% of small businesses and 76% of mid-sized organizations do too. In short, most companies are now leveraging the benefits of multi-cloud environments to optimize their operations. However, with more cloud services come more complex security challenges.

What is Multi-Cloud?

At its core, multi-cloud involves using cloud services from more than one cloud vendor. It can be as simple as using software-as-a-service (SaaS) solutions like Salesforce, Office 365, or Dropbox from different cloud vendors. However, in the enterprise, multi-cloud typically refers to the strategic use of multiple cloud providers for running critical applications and workloads. Here, cloud services tend to fall into more specific and technical use cases like platform-as-a-service (PaaS), infrastructure-as-a-service (IaaS), function-as-a-service (FaaS), and container-as-a-service (CaaS).

But why is multi-cloud so popular? Well, it gives organizations the flexibility to choose the best cloud provider for a particular workload, application, or service. This can help reduce vendor lock-in, avoid service outages, and enable better cost management.

More specifically, a multi-cloud strategy allows organizations to leverage the strengths of different cloud providers, such as the compute power of AWS, the machine learning capabilities of Google Cloud Platform, and the hybrid cloud capabilities of Microsoft Azure. Multicloud solutions are typically built on open-source, cloud-native technologies, such as Kubernetes, that all public cloud providers support.

Top Challenges of Multi-Cloud Security

As more organizations adopt multi-cloud environments to achieve greater flexibility and scalability, they are also facing an increasing number of multi-cloud security challenges. These challenges stem from the complex nature of managing security across multiple cloud providers and the unique security risks that arise from using multiple cloud services. Let’s look at the top challenges more closely.

Visibility and Control

One of the biggest challenges of multi-cloud security is maintaining visibility and control across different cloud environments. With multiple clouds, it can be challenging to gain a comprehensive view of all the assets, configurations, and activities taking place in each environment.

Data Protection

Another critical challenge is protecting data across multiple cloud environments. It’s essential to ensure that data is adequately encrypted, both in transit and at rest, to prevent unauthorized access. Additionally, organizations must ensure that they have proper backup and recovery processes in place in case of a data breach or loss. For example, a company might use Google Cloud Storage for backup and AWS S3 for primary storage but have different encryption and access control policies in each cloud, making it difficult to ensure consistent protection.

Identity and Access Management

Multi-cloud environments can also create challenges with identity and access management (IAM). Organizations must ensure that users have the proper access privileges to the resources they need in each cloud environment while also ensuring that access is revoked correctly when needed. For example, a user may have access to certain AWS resources but not Azure, leading to potential security gaps.

Compliance

Compliance with regulatory requirements is another challenge when working with multiple cloud providers. Organizations must ensure that they meet each regulatory body’s requirements across all cloud environments. For example, an organization may be subject to HIPAA compliance requirements, but AWS may have different compliance policies than Azure, leading to potential compliance gaps.

Threat Detection and Response

Finally, detecting and responding to threats across multiple cloud environments can be challenging. Therefore, it’s essential to have a unified threat detection and response strategy that can detect threats in real time and respond appropriately. For example, suppose a security event occurs in one cloud environment. Here, it can be challenging to determine if the same event is happening in another cloud environment without proper monitoring and correlation of events.

Solving Multi-Cloud’s Biggest Challenges

Adopting multi-cloud security best practices is not only essential but imperative to overcome the biggest challenges of multi-cloud security. Here are some key strategies that organizations can implement to improve their multi-cloud security posture:

• Implement a centralized security platform: To gain visibility and control across multiple cloud environments, organizations should use a centralized security platform that provides a unified view of their security posture.
• Use a common identity and access management framework: To ensure consistent access control across multiple clouds, organizations should use a common IAM framework. For example, using a single sign-on (SSO) solution can help ensure that users have the proper access privileges across all cloud environments.
• Encrypt data across all cloud environments: To protect data across multiple clouds, it’s essential to encrypt data both in transit and at rest. Organizations should use consistent encryption policies across all cloud environments with tools like Azure Key Vault.
• Conduct regular security assessments: To ensure that security policies and procedures are effective, organizations should conduct regular security assessments across all cloud environments. This can help identify potential security gaps and provide insights for improving security practices.
• Apply automation to support your multi-cloud strategy: Automation is a crucial component of multi-cloud security best practices. By automating tasks like configuration management, vulnerability scanning, and incident response, organizations can improve their efficiency and reduce the risk of human error in managing their multi-cloud environments.
• Build transparency into cloud costs: Cloud cost management is essential for organizations to avoid overspending on their multi-cloud environments. Implementing the right tools to monitor cloud spending across all cloud environments is critical for maintaining visibility and control. Using cloud management platforms that offer centralized management and reporting over cloud costs can help organizations build transparency into their cloud spending.

By adopting these multi-cloud security best practices, organizations can overcome the challenges of multi-cloud security and ensure the safety and security of their cloud environments.

Final Thoughts

As more organizations continue to adopt multi-cloud strategies, the importance of multi-cloud security cannot be overstated. To mitigate the potential risks associated with multi-cloud security challenges, organizations must prioritize adopting multi-cloud security best practices. Organizations must take a proactive approach to security and ensure that they have a comprehensive security strategy in place that covers all their cloud environments. By doing so, organizations can reap the benefits of multi-cloud while minimizing potential security threats.