In the dynamic world of cloud technologies and cyber threats, where business processes increasingly depend on the uninterrupted operation of IT systems, regular infrastructure audits are becoming not just a recommendation, but a vital necessity. They allow not only to identify current vulnerabilities and inefficiencies, but also to lay the foundation for future development, avoiding unexpected failures and significant financial losses.
Key areas of IT audit
A comprehensive IT audit covers a wide range of infrastructure components, each of which plays a critical role in business operations. Ignoring even one of these areas can lead to system failures and cyber incidents.
- Network infrastructure: Verification of topology, configuration of routers (Cisco Catalyst, Juniper, HP/Aruba), switches, firewalls (Cisco Firepower, Fortinet, Palo Alto), VPN connections, and the quality of SD-WAN solutions. Assessment of bandwidth, latency, identification of bottlenecks, and compliance of network policies with security standards.
- Server infrastructure and virtualization: Audit of physical and virtual servers (VMware vSphere, Hyper-V, Nutanix), their performance, resource utilization, operating system, and application configurations. Verification of clustering solutions, fault tolerance, and Disaster Recovery plans.
- Cloud resources: Detailed analysis of Microsoft Azure (Arc, Stack HCI, VD, Entra ID), AWS (EC2, EKS, RDS, S3), Google Cloud (GKE, BigQuery), and Oracle Cloud (OCI) usage. Assessment of architecture, security, cost optimization (FinOps), compliance with corporate standards, and Cloud-Native best practices.
- Cybersecurity: Comprehensive verification of all protection layers: from the perimeter to endpoints. Audit of EDR systems (CrowdStrike, Trend Micro, Microsoft Defender), SIEM (Microsoft Sentinel, Splunk), NGFW (Cisco Firepower, Fortinet, Palo Alto), identity and access management solutions (Microsoft Entra ID, Duo), as well as compliance of security policies with international standards and regulatory requirements.
- Backup and recovery systems (Backup/DR): Verification of strategies, schedules, and success rates of backups (Veeam, Commvault, Acronis), as well as the effectiveness of Disaster Recovery plans (Azure Site Recovery, Zerto) and compliance with RPO/RTO business objectives.
- Monitoring and management systems: Evaluation of the effectiveness of monitoring tools (Prometheus, Grafana, Datadog, Azure Monitor, Zabbix) for problem detection, performance analysis, and load forecasting.
- Licensing: Verification of the quantity and type of licenses (Microsoft CSP/EA, VMware VPP, Veeam VCSP, Oracle ULA) against actual usage, optimization of licensing costs, and avoidance of non-compliance risks with license agreements.
Frequency of IT audits
The frequency of audits depends on company size, infrastructure complexity, industry requirements, and the dynamics of changes. However, there are general recommendations:
| Audit type | Frequency | Primary objectives |
|---|---|---|
| Comprehensive audit | Annually or every 2 years | Deep analysis of the entire IT infrastructure, identification of systemic problems, strategic planning. |
| Security audit (Penetration testing, Vulnerability assessment) | Quarterly or twice a year | Identification of new vulnerabilities, verification of security system effectiveness, compliance with regulatory requirements. |
| Performance and cost optimization audit (FinOps) | Quarterly | Analysis of resource utilization, identification of unused capacities, optimization of cloud costs (Rightsizing). |
| Change audit (after significant updates, migrations) | After each significant change | Verification of correctly implemented changes, absence of new vulnerabilities or performance issues. |
Benefits of regular audits
Regular IT audits bring tangible benefits to businesses:
- Increased security: Identification and elimination of vulnerabilities before they can be exploited by attackers. Ensuring compliance with cybersecurity standards.
- Cost optimization: Identification of redundant resources, unused licenses, and inefficient configurations, allowing for significant reduction in OPEX and CAPEX. This is especially relevant for cloud infrastructures, where FinOps practices are critical.
- Improved productivity: Identification of bottlenecks, optimization of configurations, and updating of outdated hardware or software to enhance overall system performance.
- Risk reduction: Proactive identification of potential problems, preventing failures, downtime, and data loss. Improvement of Disaster Recovery plans (RPO, RTO).
- Compliance with standards: Ensuring compliance with industry standards, regulatory requirements, and corporate policies.
- Strategic planning: Obtaining objective information for making informed decisions regarding the future development of IT infrastructure and investments.
How SL Global Service addresses this
The SL Global Service team offers comprehensive IT audits based on a vendor-agnostic approach and deep expertise in cloud technologies and cybersecurity. SGS engineers conduct audits across all key areas, utilizing advanced tools and proprietary methodologies.
For cloud infrastructure audits, SGS analyzes configurations and resource utilization in Microsoft Azure, AWS, Google Cloud, and Oracle Cloud. FinOps practices are applied for cost optimization, using Azure Cost Management, as well as monitoring tools such as Azure Monitor, Prometheus, Grafana, and Datadog, to identify inefficiencies and Rightsizing opportunities. The result is a detailed report with recommendations for architectural optimization, performance improvement, and TCO reduction.
In the field of cybersecurity, SGS engineers conduct security assessments using solutions such as Microsoft Defender, CrowdStrike, Trend Micro, and Trellix for EDR analysis. Microsoft Sentinel and Splunk are used for SIEM system evaluation. NGFW configurations (Cisco Firepower, Fortinet, Palo Alto), the effectiveness of identity management solutions (Microsoft Entra ID, Duo), and Zero Trust policy compliance are verified. A typical outcome is the identification of vulnerabilities, development of a roadmap for their remediation, and an increase in overall cyber resilience.
During network infrastructure audits, the SL Global Service team analyzes configurations of Cisco Catalyst, Cisco Meraki, Juniper, HP/Aruba, MikroTik, Ubiquiti, as well as the effectiveness of SD-WAN solutions. Bandwidth, connection reliability, and compliance of network policies with corporate standards and security requirements are verified. This allows for the optimization of network resources and the elimination of potential bottlenecks.
For Backup/DR system audits, SGS evaluates the effectiveness of Veeam, Commvault, Acronis, Zerto, and Azure Site Recovery solutions, verifying RPO and RTO compliance with business requirements. This ensures fast and effective data recovery in the event of incidents.
As part of the IT audit service, the SL Global Service team also analyzes existing DevOps practices, leveraging knowledge of Terraform, Ansible, Pulumi, GitHub Actions, Azure DevOps, and ArgoCD, and assesses the use of Microsoft 365 (Teams, SharePoint, Exchange Online) and licenses (Microsoft CSP/EA, VMware VPP, Veeam VCSP, Oracle ULA) to ensure their optimality and compliance.
Don’t wait for IT infrastructure problems to manifest as critical failures or cyberattacks. Proactive and regular IT audits are an investment in the stability, security, and future development of your business. Contact experts to get an objective assessment and a clear action plan for optimizing your IT infrastructure.