Cloud, application and infrastructure security

Trace exposure through identities, data paths and critical workloads.

Yojo reviews an agreed set of cloud accounts, applications, identities, networks, endpoints, or servers and works with asset owners to sequence remediation.

Frame a technical security review

This work becomes relevant when the route is unclear.

  1. The technology estate has changed

    Migration, rapid deployment, acquisition, or platform growth has changed trust boundaries and ownership faster than review practices.

  2. Privilege and data movement are hard to follow

    Teams cannot readily explain which identities can reach sensitive information across platforms and supporting infrastructure.

  3. Findings recur without durable remediation

    Configuration or design issues return because dependencies, change ownership, and validation steps were not addressed together.

Questions the engagement must resolve.

  1. Which workloads and data flows are most important to business operations?

  2. Which human and machine identities can cross important trust boundaries?

  3. Where do architecture, configuration, or monitoring controls leave material exposure?

  4. Which owner can make each change and how should it be checked afterwards?

How the workstreams connect.

The engagement boundary determines how far each stream goes. The sequence is adjusted to the agreed question, access, and operating constraints.

  1. Workload and architecture boundary

    Identify included services, accounts, applications, data flows, trust boundaries, owners, and dependencies.

  2. Identity and data-path review

    Examine privileged access, service identities, authentication paths, data movement, and relevant control points.

  3. Configuration and control review

    Review the agreed architecture and settings against the organisation's requirements and the permitted review methods.

  4. Remediation sequencing

    Work with asset owners to order changes around dependencies, service availability, and existing delivery commitments.

System viewSecurity workstreams cross a connected technology stack. The workstreams are Workload and architecture boundary, Identity and data-path review, Configuration and control review, Remediation sequencing.

Expected outputs, qualified before delivery.

These are proposed artefacts. Their format, audience, evidence threshold, and ownership are agreed within the engagement boundary.

System boundary and trust map
A proposed view of included workloads, identities, data paths, trust boundaries, and owners to confirm with the client.
Technical findings register
A format to agree for observed conditions, affected assets, business relevance, supporting material, and remediation ownership.
Remediation backlog
A proposed sequence of changes, dependencies, owners, and decision points for the client to approve.
Validation plan
Checks, access, timing, and acceptance criteria to agree before any follow-up validation is performed.

A useful boundary is explicit on both sides.

What the client provides

  • Provide an accurate inventory, architecture information, and named owners for the included assets.
  • Arrange least-privilege access and safe working windows for the agreed review activities.
  • Approve all testing targets, methods, timing, and contacts in writing before testing begins.
  • Assess change impact, approve remediation, and manage production changes through client processes.

What the service does not claim

  • The review is point-in-time and does not cover platforms, accounts, applications, or dependencies outside the written boundary.
  • No intrusive testing is authorised by this page; separate written permission is required for every target and method.
  • Remediation and follow-up validation are included only when they are stated in the agreed engagement terms.

A concise operating sequence.

Each point is a decision gate. Work moves forward when the required people, evidence, and authority are in place.

  1. Map

    Confirm assets, identities, data paths, owners, access, and authorised methods.

  2. Examine

    Review the included design and configuration with responsible technical teams.

  3. Sequence

    Agree remediation order, dependencies, ownership, and any follow-up checks.

Related intelligence

Setting cloud, application and infrastructure security priorities

Read the briefing

Bring the systems, constraint, known concern, and decision that the work must support.

Frame a technical security review