BSI C5 · Control SIM-02 · Priority: high · Component: Security Incident Management

What this control covers

Engages experts to classify, prioritize, and analyze potential security incidents, performing root-cause analysis. Ensures swift and accurate handling to mitigate impacts on cloud customer data and maintain service security and integrity.

Why it matters

Risk is the language an executive team understands; this control connects technical reality to board-level decisions and budget allocation.

How to implement

AWS

Codify the policy intent as SCPs, AWS Config conformance packs, and Security Hub standards so the cloud enforces what the document says.

Azure

Codify in Azure Policy initiatives (built-in regulatory compliance for CIS, ISO 27001, SOC 2, HIPAA) and assign at management-group level.

GCP

Org Policy Service for guardrails and Config Validator in CI to pre-check Terraform plans against policy as code (Rego).

Google Workspace

Enforce 2-Step Verification (preferably hardware keys for admins) for the entire org, set session length to ≤ 12 hours, and disable less-secure-app access. Use Context-Aware Access levels to restrict admin sign-in by IP/device posture. Provision and de-provision users via SCIM from your HRIS so leavers lose access on day one.

GitHub

Require SSO + SCIM from your IdP on the organisation; enforce 2FA org-wide and use fine-grained PATs (or, better, GitHub Apps) instead of classic tokens. Restrict outside collaborators, require signed commits on protected branches, and use OIDC from Actions to short-lived AWS/GCP/Azure credentials rather than stored secrets.

Zoho Mail

Make two-factor authentication mandatory for all users (TOTP, OneAuth, or YubiKey) in Admin Console → Security. Configure SAML SSO against your IdP and disable password-based logins for admins. Use role-based privileges (Admin / Spam Moderator / Mail Account Admin) and review the Login history report monthly for anomalies.

On-premises

Maintain a policy library with a documented review cadence (annual minimum); store in your GRC tool with attestation tracking. Map each policy to controls so an audit pull cites the exact policy clause.

Evidence to collect

  • policy_document — A signed, version-controlled policy stating leadership intent and the named owner.

Signed policy or standard documents the safeguard. Focus: Processing of security incidents.

Quick checklist

  • Risk — Cloud Customer Data / Security Incident Management
  • Security — Cloud Customer Data / Security Incident Management
  • Data — Cloud Customer Data / Security Incident Management
  • Policy — Cloud Customer Data / Security Incident Management
  • Access — Cloud Customer Data / Security Incident Management

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