Multi-Cloud Security Visibility: How to Improve It

Multi-cloud security visibility

See what happens across your cloud environments

How to improve security visibility across multi-cloud environments

Organizations increasingly rely on multiple cloud providers, SaaS applications (Software as a Service – applications accessed over the internet without being installed and managed locally by the organization), and distributed workloads. While this approach offers flexibility and scalability, it also makes it more difficult for security teams to maintain a complete view of users, data, applications, and security events.

Improving security visibility across multi-cloud environments requires more than monitoring each platform separately. Organizations need to understand what assets they have, who can access them, how data moves between services, and how security events across different environments are connected.

Each cloud platform has its own logging formats, security controls, identity models, and monitoring capabilities. Without a unified approach, this can create blind spots and make it difficult to understand whether events occurring in different environments are related.

How to improve security visibility across multi-cloud environments

Identify all cloud assets and services

Security teams cannot protect resources they do not know exist. The first step toward better visibility is maintaining an accurate inventory of cloud assets, applications, workloads, and services.

This should include both approved services and applications adopted by employees without direct IT involvement. Shadow IT can create visibility gaps, particularly when sensitive data is stored or transferred through services that have not been evaluated by the security team.

Continuous asset discovery helps organizations maintain an accurate view of their cloud environment as new resources and applications are added.

Centralize visibility across cloud platforms

Each cloud provider offers its own monitoring tools, logs, and security controls. When these are managed separately, security teams may need to move between multiple dashboards to understand what is happening across the infrastructure.

Centralizing security data makes it easier to identify patterns that would be difficult to detect within a single platform. Authentication activity, configuration changes, data transfers, and security alerts can provide more context when analyzed together.

Bringing logs and security events into a common view helps teams compare activity across platforms and investigate related events without treating each cloud environment as a separate security domain.

The objective is not simply to collect more data, but to create a consistent view across cloud environments.

Centralize visibility across cloud platforms

Monitor identities and access

In cloud environments, identity is one of the main points of access to applications and data. Compromised accounts, excessive permissions, inactive accounts, and unusual authentication activity can all introduce security risks.

Organizations should have visibility into who has access to cloud resources, what permissions each identity holds, and how those privileges are used.

Monitoring identity activity can also help detect changes in user behavior, such as access from unusual locations, unexpected privilege escalation, or attempts to reach resources that are not normally used by that account.

Gain visibility into cloud applications and data

As the number of SaaS applications increases, organizations need to understand where sensitive data is stored and how it moves between users, applications, and cloud platforms.

Cloud Access Security Broker (CASB) solutions can provide additional visibility into cloud application usage, Shadow IT, data access, and policy enforcement. When evaluating these solutions, knowing how to compare CASB vendors for multi-cloud environments helps organizations assess coverage, integration capabilities, and the level of control provided across different cloud services.

The goal is to apply consistent visibility and controls even when data moves between different cloud services.

Correlate security events in real time

A suspicious login in one platform may appear isolated. Combined with a privilege change, unusual data transfer, or endpoint alert, however, it may indicate a broader security incident.

This is why cloud events should not be investigated independently. Real-time security event monitoring helps security teams correlate activity from cloud services with events from identities, endpoints, privileged accounts, and network infrastructure.

Connecting these signals provides additional context and helps analysts distinguish isolated events from activity that requires immediate investigation.

Standardize monitoring across environments

Different cloud platforms can generate different types of logs and use different security configurations. Without a common monitoring approach, this can create gaps between environments.

Organizations should define which events need to be logged, how long logs should be retained, which activities require alerts, and how incidents are escalated.

Applying consistent monitoring requirements across cloud platforms makes it easier to identify gaps and reduces dependence on the default configuration of each individual provider.

Key questions for evaluating multi-cloud visibility

Organizations can assess their current level of visibility by asking:

Do we have an up-to-date inventory of cloud assets and applications?
Can we identify who has access to sensitive cloud resources?
Can we detect unauthorized or unknown SaaS applications?
Are security events centralized across cloud platforms?
Can cloud events be correlated with identity, endpoint, and network activity?
Are logging and alerting requirements consistent across environments?

If these questions cannot be answered quickly, there may still be significant visibility gaps across the cloud environment.

From fragmented data to useful visibility

Security visibility in a multi-cloud environment does not depend on a single tool. It requires correlating information about assets, identities, applications, data, and security events across the entire infrastructure.

Consider a small company using Microsoft 365, several SaaS applications, and an on-premises infrastructure consisting of workstations and a server. The company may already have antivirus software and an EDR solution deployed across its endpoints. These tools can detect malware, suspicious behavior, or compromise attempts at the device level, but they do not automatically provide a complete view of what is happening across the rest of the infrastructure.

For example, an account may show unusual login activity in the cloud while the EDR detects suspicious activity on the same user's laptop and the firewall records connections to an unusual destination. When analyzed separately, these may appear to be independent events. A SIEM can centralize and correlate them, allowing the security team to identify the connection between these events and investigate the incident in context.

From fragmented data to useful visibility

SIEMBIOT, the SIEM platform developed by Expertware, centralizes and correlates events from different sources, reducing visibility gaps and providing a unified view of security activity. Monitoring is not limited to cloud services: data can also be correlated with events from on-premises infrastructure, endpoints, security solutions, networks, and privileged accounts. This brings relevant security information into a common view and allows events that may appear unrelated when analyzed separately to be correlated and assessed in the context of the entire infrastructure.

As cloud environments continue to expand, maintaining visibility across different platforms and understanding how events are connected becomes essential for identifying risks early and responding effectively.

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