Google Cloud Security Review: Securing Your GCP Environment for Compliance
Google Cloud Platform (GCP) powers some of the world's most demanding workloads and has built a reputation for strong security foundations. However, the flexibility and power of GCP's IAM model, organisation hierarchy, and networking capabilities mean that misconfiguration risk is significant. An GCP security review assesses your environment against CIS Benchmarks for GCP, Google's security best practices, and the requirements of your compliance framework.
GCP IAM and Organisation Hierarchy
GCP's resource hierarchy — Organisation → Folders → Projects → Resources — creates a powerful but complex IAM model. IAM policies at higher levels in the hierarchy are inherited by all resources below them.
Least privilege IAM: Use predefined roles where possible rather than primitive roles (Owner, Editor, Viewer). Owner and Editor on projects grant broad access to all resources in that project. Predefined roles scope permissions to specific services.
Service account hygiene: Service accounts are the most common IAM misconfiguration target. Review all service accounts for: unused accounts (disable or delete), accounts with project-level roles (scope to minimum required), and accounts with exported keys (prefer Workload Identity Federation over key-based authentication).
Workload Identity Federation: Use Workload Identity Federation for workloads running outside GCP (on-premises, AWS) to authenticate to GCP without service account keys — significantly reducing credential exposure risk.
Organisation constraints: Apply Organisation Policy Service constraints to prevent risky configurations across the organisation — restricting public IP assignment to VMs, preventing service account key creation, enforcing uniform bucket-level access on Cloud Storage.
GCP Network Security
VPC design: Use Shared VPC for centralised network management in multi-project environments. Implement VPC peering or Private Service Connect for inter-project communication rather than public internet routing.
Firewall rules: Review all firewall rules for overly permissive ingress. Particularly look for: 0.0.0.0/0 sources on SSH (22), RDP (3389), and database ports. Use firewall rule logging on permissive rules to build evidence of network activity.
VPC Service Controls: For the most sensitive workloads, use VPC Service Controls to create security perimeters around GCP services — preventing data exfiltration even if credentials are compromised.
Cloud Armor: Enable Google Cloud Armor for DDoS protection and Web Application Firewall capabilities for internet-facing workloads.
GCP Security Command Center and Logging
Security Command Center (SCC): GCP's native CSPM and threat detection platform. Enable SCC Premium for the full feature set. Key capabilities: asset discovery and inventory, vulnerability findings from Web Security Scanner, misconfiguration findings from Security Health Analytics, threat findings from Event Threat Detection.
Cloud Audit Logs: Enable Admin Activity audit logs (always on), Data Access audit logs (configure for sensitive services — GCS, BigQuery, Secret Manager), and System Event logs. Export logs to Cloud Logging with appropriate retention, and consider exporting to SIEM (Chronicle, Splunk, Datadog).
Chronicle: Google's cloud-native SIEM, now deeply integrated with GCP. Chronicle provides sub-second search over petabyte-scale log data and includes threat intelligence from Google's visibility into internet traffic.
CIS GCP Foundations Benchmark: The CIS Foundations Benchmarks for GCP provide specific, testable hardening recommendations across IAM, storage, logging, networking, and virtual machines. Automated compliance scanning using Forseti Security or SCC's Security Health Analytics measures and tracks benchmark compliance.
Why Organisations Choose Savadub
Deep GRC Expertise
Our team holds practitioner-level expertise across every major compliance framework — not just theoretical knowledge, but hands-on implementation experience across multiple industries and organisation sizes.
Engineers, Not Just Consultants
We implement controls, not just recommend them. Our GRC engineers configure the systems, write the integrations, and build the monitoring pipelines that make compliance operational.
Global and African Regulatory Coverage
We understand both the global frameworks and the African regulatory environment — NDPR, NDPA, CBN directives, NITDA guidelines, and regional data protection laws — making us uniquely positioned for organisations operating across Africa and internationally.
Internal and External Audit Capability
We provide both embedded internal audit functions and independent third-party audit support, including CPA-accredited audit coordination for SOC examinations.
End-to-End Engagement
From initial gap assessment through certification, continuous monitoring, and ongoing compliance management — we are your long-term GRC partner, not a one-time consultant.
Industries We Serve
Financial Services · Healthcare · Technology & SaaS · Manufacturing · Logistics & Trade · Government & Public Sector · Energy & Critical Infrastructure · Education & EdTech · Media & Broadcasting · Retail & E-Commerce · Professional Services · Food & Beverage
Deliverables You Receive
Working with Savadub, every engagement delivers a concrete set of outputs:
- Gap Assessment Report — prioritised findings with effort estimates and risk ratings
- Compliance Roadmap — milestone-based plan from current state to certification or attestation
- Risk Register — organisational risk register with treatment plans
- Policy Pack — all required policies authored, reviewed, and approved
- Technical Control Implementation Evidence — configurations, screenshots, and audit trails
- Internal Audit Report — independent assessment of control effectiveness
- Audit Evidence Repository — organised, auditor-ready evidence collection
- Executive Summary Presentation — board and leadership-ready compliance status
- Remediation Tracker — structured tracking of open findings and closure evidence
- Continuous Monitoring Setup — ongoing CCM pipeline for post-certification compliance
Get Started with Savadub
Savadub's GRC practice combines deep compliance expertise with technical engineering capability. We don't just advise — we build, implement, and operate your compliance program from the ground up.
Book a free GRC consultation with our team. We will review your current posture, identify your most critical gaps, and give you a clear, costed roadmap to compliance.
Contact us:
- Email: grc@savadub.com
- Phone: +234 816 734 2201
- WhatsApp: +234 903 234 8435
- Website: www.savadub.com
