Your organization probably isn’t running everything in one place anymore.

You might have on-premises servers, private cloud workloads, AWS or Azure applications, and containers. That flexibility helps the business but makes security more complex.

You need to see what’s happening, spot threats, and respond quickly.

So, how do you extend detection and response across on-premises and cloud environments? It starts with visibility.

Why Is Cloud Different?

On-premises infrastructure changes, but cloud environments can change much faster.

A new workload can be created in minutes. Configurations can change. Containers can be spun up and removed. And some cloud assets may exist only for a short time.

That creates a problem for security teams.

If you rely on periodic scans, you might find a vulnerability or configuration issue after the asset has already changed or disappeared.

There is also the question of scale. An organization may have assets spread across several cloud providers, along with its existing on-premises infrastructure.

Security teams need to keep track of all of it without creating a separate security process for every environment.

What Does a Security Team Actually Need to See?

Think about a security team trying to understand its cloud environment.

The first question is pretty simple: What do we have?

Once they know what assets exist, they need to ask:

• Are these assets configured correctly?
• Are there vulnerabilities or security gaps?
• Are they meeting our security and compliance requirements?
• Has anything changed unexpectedly?
• Is there anything that looks like an attack?
• If there is a problem, what should we do about it?

These questions apply to both traditional and cloud environments. The challenge is that cloud environments can change so quickly that keeping up manually becomes difficult.

This is where cloud security capabilities can extend an XDR approach beyond endpoints and networks.

Extending Visibility into the Cloud

Fidelis CloudPassage Halo® is a cloud-native application protection platform (CNAPP) designed to help organizations manage security and compliance across dynamic cloud environments.

The platform brings together three services: Halo Cloud Secure™, Halo Server Secure™, and Halo Container Secure™.

Each one focuses on a different part of the cloud environment.

Halo Cloud Secure™ provides agentless cloud posture management. It helps organizations discover and inventory cloud assets, assess their configurations, identify security issues, and monitor compliance.

Halo Server Secure™ focuses on workload protection for Linux and Windows environments. It continuously monitors things such as configuration changes, file integrity, security events, vulnerabilities, and indicators of threat or compromise. It can also automatically quarantine infected assets.

Halo Container Secure™ brings similar security controls to containers. It monitors configuration and integrity during deployment and runtime and can detect and quarantine rogue containers.

So instead of looking at cloud security as one single problem, Halo covers the cloud accounts, workloads, and containers that make up the environment.

Why Does Continuous Monitoring Matter?

Here’s a simple example.

Suppose a cloud workload is running today with a secure configuration. Tomorrow, something changes. A configuration is modified, a file is altered, or another change creates a security risk.

Periodic scans may not catch changes right away. Continuous monitoring helps reduce this gap.

Fidelis Halo® continuously monitors cloud accounts, workloads, and containers for vulnerabilities, configuration issues, and suspicious changes.

This matters even more for short-lived cloud workloads. If something exists for only a few hours, waiting for the next scheduled scan may not be enough.

What About Compliance?

Cloud security isn’t only about detecting attacks.

Security teams also need to make sure cloud environments follow internal policies and external requirements.

Halo Cloud Secure™ includes policies and rules covering CIS benchmarks, security best practices, and standards such as PCI DSS, SysTrust/SOC 2, and HIPAA.

It provides remediation guidance and sends issues to the right asset owners.

This makes compliance monitoring continuous, not just something done before an audit.

What Happens When Workloads Move?

There is another challenge with hybrid and multi-cloud environments: workloads don’t necessarily stay in one place.

A workload might move from one cloud environment to another or from the cloud back to an on-premises environment.

Security shouldn’t have to start over every time that happens.

Fidelis Halo® uses Linux and Windows microagents for workload protection and is designed to support public, private, hybrid, and multi-cloud environments. It supports moving workloads across cloud and on-premises environments without requiring workload security to be retuned or reconfigured.

That makes it easier to maintain consistent security as infrastructure changes.

Where Does XDR Come In?

This brings us back to extended detection and response.

The idea behind XDR is to connect visibility and security operations across different parts of an environment instead of keeping everything in separate silos.

Fidelis Elevate® provides Active XDR capabilities across endpoint and network environments. Fidelis Halo® extends security to cloud accounts, workloads, and containers.

This gives security teams a broader view across on-premises and cloud environments.

Halo also integrates with DevOps, CI/CD, SIEM/SOAR, and other security tools.

Bringing It All Together

The move to the cloud changes the security conversation.

Security teams need to protect both on-premises servers and cloud assets, while tracking their configurations, compliance, and suspicious changes.

And because cloud environments can change quickly, that visibility needs to keep up.

By extending security capabilities from endpoint and network environments into cloud accounts, workloads, and containers, Fidelis brings cloud security into the broader detection and response picture.

That is ultimately the goal: a security approach that can follow the organization wherever its infrastructure runs, whether that is on-premises, in the cloud, or across both.