F E B R U A RY 2 0 2 6 3 OXEN NETWORKED By Andrew Hartwig, Security Engineer SECURITY IN A MULTI-CLOUD ENVIRONMENT The appeal of multi-cloud lies in its flexibility — the ability to leverage the strengths of different cloud providers, avoid vendor lock-in, and optimize costs. However, this approach also introduces a new layer of complexity. CHALLENGES AND STRATEGIES One of the biggest challenges in multi-cloud security is the inconsistency of security controls. Each cloud provider (such as AWS, Azure, and Google Cloud) offers its own set of tools, configurations, and terminology. This makes it difficult to enforce uniform security policies across environments. Without a centralized framework, organizations risk gaps in coverage and increased threat exposure. Identity and access management (IAM) is another area that becomes more complex in a multi-cloud setup. Managing user permissions across multiple platforms can lead to misconfigurations, over-privileged accounts, and potential security breaches. Implementing federated identity solutions like Entra ID, Duo, or Okta can help streamline access control and enforce least privilege principles across clouds. Compliance and governance also add complexity. Cloud providers may store data in different geographic regions, which can complicate adherence to regulations like GDPR, HIPAA, or CCPA. Automating compliance checks using tools like AWS Config, Azure Policy, and Google Cloud Platform’s Security Command Center can help ensure that policies are consistently enforced, and audits are easier to manage. Data protection is paramount in any cloud environment, and in a multi-cloud setup, it’s essential to maintain consistent encryption standards. Encrypting data both at rest and in transit, using customer-managed keys (CMKs), and rotating keys regularly are best practices that should be applied universally. TOP SSO PROVIDERS FOR MULTI-CLOUD ENVIRONMENTS Entra ID is tightly integrated with Microsoft 365 and Azure services. It supports hybrid environments, conditional access policies, and seamless integration with both on-premises Active Directory and Windows Hello. Entra ID is especially well-suited for enterprises already invested in the Microsoft ecosystem. Duo, part of Cisco, provides a cloud-hosted SSO solution that supports both SAML 2.0 and OpenID Connect (OIDC) protocols. Duo adds phishing-resistant MFA, device trust checks, and adaptive access policies to cloud and on-premises applications. It integrates smoothly with existing identity providers like Active Directory, Google Workspace, and Okta, making it a flexible choice for organizations prioritizing security and ease of deployment. Duo’s SSO also supports passwordless authentication and is a strong fit for regulated industries like health care, finance, and education. Okta is a cloud-native identity platform known for its extensive integration network, supporting over 7,000 applications. It offers adaptive multi-factor authentication (MFA), passwordless options, and granular access policies based on user behavior, device health, and location. Okta’s Universal Directory and lifecycle management features make it ideal for organizations seeking flexibility and scalability.
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