Introduction

Adopting cloud services is only half the battle.
The real challenge? Monitoring them continuously to make sure your provider is still meeting your security, compliance, and operational requirements.

ISO 27001 Control 5.23 ensures that organizations actively monitor cloud service usage and security, instead of assuming “the provider has it covered.”

Summary of Control 5.23: Information Security for Use of Cloud Services Monitoring

🔒 Control Title: Information Security for Use of Cloud Services Monitoring
📘 Source: ISO/IEC 27002:2022, Section 5.23
🧩 Control Category: Organizational
🔍 Attributes:

• Control Type: #Detective / #Preventive
• Security Properties: #Confidentiality, #Integrity, #Availability
• Cybersecurity Concepts: #Protect, #Detect
• Operational Capabilities: #Cloud_Security, #Monitoring
• Security Domain: #Protection_and_Defense

Control Objective

To ensure that cloud services in use are monitored and reviewed regularly, confirming that security, compliance, and contractual requirements are consistently met.

Implementation Guidance

1) Establish Monitoring Procedures:

• Track service performance, uptime, and incident reporting
• Use dashboards, monitoring tools, and logs to identify anomalies

2) Review Provider Compliance:

• Request regular security reports, certifications, and audits from the cloud provider
• Check alignment with ISO 27017, ISO 27018, SOC 2, or regulatory requirements

3) Monitor Configurations:

• Continuously scan for misconfigurations (e.g., exposed storage buckets, weak IAM policies)

4) Review Security Incidents:

• Ensure providers notify you of breaches promptly
• Test incident response integration with your own procedures

5) Audit Cloud Usage:

• Conduct periodic reviews of what data is stored, processed, or transmitted through the cloud

Why This Control Matters

Without monitoring cloud services:

• Security gaps and misconfigurations may go unnoticed
• Providers may silently fail compliance obligations
• You risk data loss, breaches, or downtime without early warning

With proactive monitoring:

• You gain visibility and control over your cloud footprint
• Risks are detected before they escalate into incidents
• Compliance audits become smoother and more defensible

Common Pitfalls to Avoid

• Treating cloud as “set and forget”
• Not reviewing cloud logs or security alerts
• Relying solely on the provider’s word without independent checks
• Failing to adapt monitoring as services scale or change

Canadian Cyber’s Take

At Canadian Cyber, we help organizations implement continuous cloud monitoring strategies that go beyond provider dashboards.
We integrate SIEM, CASB, and automated compliance tools to give you a real-time view of your cloud security posture.

Want Confidence in Your Cloud Security?

We can help you monitor cloud services effectively, detect risks early, and maintain compliance with ISO 27001 and beyond.
👉 Click here to take control of your cloud monitoring.

• Share the blog on: