AWS Cloud Security Deep-Dive

Opinionated guardrails, IaC, and audit-ready controls for AWS

Modernising on AWS and want a secure, scalable foundation—fast. Ideal for startups and SMEs moving from a single account to multi-account, or established teams that need opinionated guardrails, audit-ready evidence, and clear runbooks.

Engagement options

Essentials (2–3 weeks)
Harden one environment (prod or shared services), enable Security Hub standards, centralised logging, and baseline guardrails. Evidence pack and runbooks included.

Scale (4–6 weeks)
Multi-account landing zone, SSO with least-privilege roles, VPC patterns, WAF/Shield, encryption strategy, detective controls, and incident playbooks. IaC provided (Terraform/CloudFormation) + handover.

Enterprise (6–8+ weeks)
Everything in Scale plus org-wide policy packs (SCPs/IAM boundaries), ABAC patterns, data protection design (KMS strategy, key rotation), advanced network segmentation, and compliance mapping to CIS/NIST/ISO/SOC 2.

What you’ll leave with (deliverables)

• Architecture & guardrail design – reference diagrams, account strategy, and blast-radius modelling.

• Infrastructure as Code – Terraform/CloudFormation modules for org policies, logging, networking, encryption, and security services.

• Security runbooks – incident response, onboarding/offboarding, key rotation, break-glass access, patching, and vulnerability triage.

• Evidence pack – screenshots and exports (CloudTrail, Config, Security Hub, GuardDuty), control verification matrix, and remediation log.

• Handover & enablement – admin training, backlog of next steps, and an adoption checklist.

Controls we implement (high-value highlights)

• Identity & Access – AWS SSO (IAM Identity Center), least-privilege roles, permission boundaries, just-in-time/break-glass.

• Network – VPC segmentation, egress controls, private connectivity, WAF/Shield patterns.

• Data Protection – encryption at rest & in transit, KMS key management and rotation, S3 block-public-access, DLP options.

• Detection & Response – GuardDuty, CloudTrail, Security Hub, centralised logs, alarms, and incident runbooks.

• Governance – Organisations/OUs, SCPs, tagging/ABAC, baseline configs with AWS Config.

Success measures (KPIs)

• ≥ 95% resources encrypted at rest.

• 100% encryption in transit for public endpoints.

• 100% accounts onboarded to Security Hub/GuardDuty with centralised logging.

• < 4 hours mean time to detect critical events (MTTD) via alerts.

• Evidence ready for audits on day one.

Expectations

Compliance mapping (at a glance)

• CIS AWS Foundations – level-1/2 guardrails and controls coverage.

• NIST 800-53 / ISO 27001 – mapped to identity, logging, encryption, and monitoring families.

• SOC 2 – logging, access control, change management, and incident response support.

You’ll receive a control-to-evidence matrix so auditors can trace each control to a proof item.

• A technical contact (cloud admin) and decision-maker for guardrail approvals.

• AWS Organisation access (or root-level delegate admin) and a non-prod account to start.

• Existing IaC repo access (if any) and your preferred CI/CD tool.

What we need from you

Frequently Asked Questions

Will this break our existing workloads?

No. We introduce guardrails incrementally, validate in non-prod first, and use deny-list SCPs carefully to avoid disruption.

Do we have to use Terraform?

We support Terraform and CloudFormation. If you don’t have a standard yet, we’ll bootstrap Terraform with a clean module layout.

Can we extend this to Azure/GCP?

Yes. The security patterns (identity, logging, encryption, network segmentation) are portable—we can design a multi-cloud roadmap.