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CLOUD & INFRASTRUCTURE / SECURITY

Secure the Infrastructure
Behind Your Business.

Cloud environments, identity systems, networks and workloads have become deeply connected. TMG Security helps organizations assess these environments, identify security weaknesses and strengthen the infrastructure supporting their applications and data.

INFRASTRUCTUREORGANIZATION
CLOUDIDENTITYNETWORKWORKLOADSCONTAINERSDATACONFIG
// THE INFRASTRUCTURE HAS CHANGED

Your Infrastructure Is No Longer Inside One Network.

ON-PREMISEone network, one perimeter
HYBRIDsome workloads moved
CLOUDidentity becomes the boundary
MULTI-CLOUDseveral control planes
CLOUD + CONTAINERS + IDENTITY + APIsmany boundaries, all connected

Modern environments create more flexibility, but also introduce more identities, services, trust relationships and configuration dependencies.

Security therefore needs to extend beyond individual servers. The question is no longer only whether a host is patched — it is what an identity can reach, what a service is exposed to, and which boundaries actually hold.

// THE CLOUD ATTACK SURFACE

Every Connection Creates a Security Boundary.

Scroll to travel down through the stack, one layer at a time.

TRAVELLING THE INFRASTRUCTURE STACK
LAYER 01 / 07UserWhere a request begins — a person, a service or an automated pipeline.
LAYER 02 / 07IdentityRoles, permissions and trust relationships decide what happens next.Authentication and authorization boundary
LAYER 03 / 07CloudAccounts, subscriptions and projects, and the separation between them.Account and tenancy boundary
LAYER 04 / 07NetworkSecurity groups, routing and segmentation between workloads.Network boundary
LAYER 05 / 07WorkloadsCompute, functions and containers — and the identity each runs as.Workload boundary
LAYER 06 / 07ApplicationThe service the infrastructure exists to run.
LAYER 07 / 07DataThe records every layer above is ultimately protecting.The layer that actually matters
// CLOUD & INFRASTRUCTURE CAPABILITIES

Secure Every Layer of the Infrastructure.

Four services, scoped individually or combined into a programme.

01AWS / Azure / GCP SecurityCloud Security AssessmentModern cloud environments rely on identity, services, workloads, network controls and configuration. TMG Security can assess authorized cloud environments to identify security weaknesses across relevant cloud resources and trust boundaries.Identity & AccessCloud ConfigurationNetwork ControlsStorage SecurityCompute SecurityExposed ServicesSecurity BoundariesPrivilege ManagementEXPLORE →02Active Directory SecurityIdentity Is Part of the Attack Surface.Active Directory often sits at the center of enterprise identity and access. Security weaknesses in identity configuration, privileges and trust relationships can create significant risk.Identity ConfigurationPrivileged AccessGroup PoliciesTrust RelationshipsAuthenticationAccess ControlsAdministrative AccountsSecurity HardeningEXPLORE →03Container & Kubernetes SecuritySecure the Workloads Behind Modern Applications.Containers and Kubernetes introduce new layers of infrastructure, orchestration and access control. TMG Security can assess relevant container and Kubernetes environments within authorized scope.Cluster ConfigurationWorkload SecurityContainer ImagesAccess ControlsSecretsNetwork PoliciesRuntime SecurityConfigurationEXPLORE →04Firewall & Configuration ReviewConfiguration Is a Security Control.Firewalls and infrastructure controls are only effective when they are configured appropriately for the environment. We review security-relevant configuration against what it is meant to enforce.Access RulesNetwork SegmentationExposed ServicesAdministrative AccessSecurity PoliciesConfiguration WeaknessesUnnecessary ExposureChange ManagementEXPLORE →
// CLOUD SECURITY LIFECYCLE

Secure the Environment. Then Keep Improving It.

  1. 01DISCOVEREstablish what exists and what is in scope.
  2. 02ASSESSExamine configuration, identity and exposure.
  3. 03VALIDATEConfirm findings are real and reproducible.
  4. 04REMEDIATEAddress what matters, in priority order.
  5. 05REVIEWCheck the change had the intended effect.
  6. 06IMPROVEFeed what was learned back into the baseline.
// IDENTITY

Identity Has Become the New Perimeter.

USERAn account, and what it can authenticate to.STANDARD ACCESS
IDENTITYRoles and group membership that carry rights.STANDARD ACCESS
PRIVILEGESDelegated and administrative capability.PRIVILEGED ACCESS
RESOURCESSystems those privileges can reach.PRIVILEGED ACCESS
DATAWhat the whole chain ultimately protects.CRITICAL ACCESS

In a cloud environment the network is no longer the main boundary. A role, a policy or a key can be the difference between a contained service and access across an entire account.

That is why identity and access controls sit at the centre of modern infrastructure security. Most meaningful findings are not about a single misconfigured setting — they are about what a given identity can reach once every permission and trust relationship is followed through.

// MULTI-CLOUD SECURITY

Different Clouds. One Security Strategy.

Each provider has its own controls and its own defaults. The security questions underneath them are the same.

AWS
cloud environment
AZURE
cloud environment
GCP
cloud environment
SECURITY
CONTROL
PLANE
IDENTITYNETWORKWORKLOADDATA

Depending on environment and engagement scope. We do not claim automatic support for every service of every provider.

// CONTAINERS

Applications Are Moving Into Layers.

Each layer has its own access model. Findings usually live in the relationship between two of them.

APPLICATIONthe code and its configuration
CONTAINERruntime capability
IMAGEwhat ships in the build
PODscheduling and service accounts
SERVICEexposure between workloads
CLUSTERRBAC and control plane
CLOUDnodes and their cloud identity

SEVEN LAYERS, EACH WITH ITS OWN ACCESS MODEL — SCROLL TO SEPARATE

// INFRASTRUCTURE VISIBILITY

You Can’t Secure What You Can’t See.

Most environments contain more than anyone has mapped. The first job is establishing what exists and how it connects.

IDENTITYCLOUDNETWORKSERVERCONTAINERAPPLICATIONDATA
UNKNOWNMAPPEDASSESSEDSECURED
// WHAT WE LOOK FOR

Twelve categories, assessed as relationships.

Categories of weakness we assess, described at a level useful for scoping. Findings are documented with technical detail privately to your team.

// FROM MISCONFIGURATION TO RISK

A Configuration Is Only Important When It Creates Risk.

CONFIGURATIONA setting is what it is — neither good nor bad on its own.
EXPOSUREThat setting makes something reachable it should not be.
ACCESSSomeone or something can act on what is reachable.
IMPACTWhat that action would mean for the business.

A long list of configuration deviations is easy to produce and difficult to act on. Most of it will never matter, and the items that do matter get buried alongside the ones that do not.

Assessment should focus on the relationship between technical configuration and business risk: which settings create exposure, what that exposure makes reachable, and what reaching it would actually mean. That is what turns a findings list into a plan.

// WHEN THIS APPLIES

When Should Infrastructure Security Be Revisited?

01SITUATIONMOVING TO CLOUDUnderstand security boundaries before migration.
02SITUATIONADOPTING MULTI-CLOUDReview identity and configuration consistency.
03SITUATIONINTRODUCING CONTAINERSAssess orchestration and workload controls.
04SITUATIONEXPANDING INFRASTRUCTUREReview new services and exposure.
05SITUATIONMAJOR ARCHITECTURE CHANGEValidate security controls after significant changes.
06SITUATIONPERIODIC SECURITY REVIEWContinuously identify and address configuration risks.
// WHAT YOU RECEIVE

Findings your team can act on.

Which of these apply depends on engagement scope.

SECURITY FINDINGS

Weaknesses identified across the environment in scope, with the reasoning behind each.

CONFIGURATION OBSERVATIONS

Settings that widen exposure or weaken a boundary, described precisely enough to locate.

RISK CONTEXT

What a finding means in your environment rather than against a generic scoring table.

TECHNICAL EVIDENCE

Supporting detail so findings can be verified rather than taken on trust.

REMEDIATION GUIDANCE

Practical direction on addressing each finding, including where the change belongs.

PRIORITIZED RECOMMENDATIONS

An order of work, so limited engineering time goes to what matters most.

RETEST / VALIDATION

Verification that addressed findings no longer reproduce, within the agreed retest scope.

// WHY TMG SECURITY

How this practice is put together.

01 — CLOUD + SECURITY THINKING

Understand both infrastructure and security implications.

02 — IDENTITY AWARE

Treat identity and access as core security boundaries.

03 — APPLICATION CONTEXT

Connect infrastructure security to the applications running on it.

04 — CONTAINER AWARE

Account for modern workload architectures.

05 — ATTACK-SURFACE THINKING

Look at relationships rather than isolated configurations.

06 — SECURITY ECOSYSTEM

Connect infrastructure security with offensive, defensive and application security.

Secure the Infrastructure Behind Your Business.

From cloud environments and identity systems to containers, networks and security configurations, understand where infrastructure risk may exist and what can be improved.