Cloud Security Posture Management for UK SMEs: A Practical Guide
Cloud Security Posture Management for UK SMEs: A Practical Guide
Cloud misconfiguration is responsible for over 80% of cloud-related security incidents (Gartner). For UK SMEs on Microsoft 365, Google Workspace, or cloud infrastructure, managing your cloud security posture is critical.
What Is CSPM?
Continuous monitoring and assessment of your cloud environment's security configuration. It answers: 'Is our cloud environment configured securely right now?'
Checking:
- Are all accounts enforcing MFA?
- Are admin privileges assigned appropriately?
- Are any files or resources publicly accessible?
- Have security settings been changed recently?
Common Misconfigurations in UK SMEs
Microsoft 365
- MFA not enforced (or bypassed via legacy protocols)
- Too many Global Admins
- External email forwarding enabled
- Audit logging disabled or retention too short
- DMARC/DKIM/SPF not configured
Google Workspace
- 'Anyone with the link' sharing enabled for Drive
- Third-party apps with excessive OAuth permissions
- 2-Step Verification not enforced organisation-wide
- Admin accounts used for day-to-day activity
Cloud Infrastructure
- Public storage buckets (S3, Azure Blob)
- Overly permissive IAM roles
- Encryption not enabled for data at rest
Free Tools to Assess Your Posture
Microsoft Secure Score: security.microsoft.com → Secure Score. Scores your M365 tenant out of 100 with specific recommendations.
Google Workspace Security Health: Admin Console → Security → Security health. Shows critical issues.
What to Review Monthly
- Admin accounts — who has Global/Super Admin?
- MFA status — any users without MFA?
- Guest/external accounts — any who shouldn't have access?
- OAuth app permissions — any excessive permissions?
- Sharing settings — any files publicly accessible?
- Alert policies — reaching the right people?
- Audit log retention — long enough for breach investigations?
From Point-in-Time to Continuous
Manual reviews catch issues at a moment in time. Continuous CSPM alerts you when posture changes. Gridisys provides continuous monitoring of Microsoft Entra ID and Google Workspace — alerting on admin changes, OAuth grants, forwarding rules, and suspicious sign-ins.