Digisecuritas logo

APPLICATION SECURITY & THREAT

Build Security Into the Application, Then Test It

Application risk develops through decisions made during design, development, integration and release. Testing can identify vulnerabilities, but it cannot correct unclear ownership, weak requirements or unsafe delivery practices on its own.

Digisecuritas helps product, engineering and security teams understand credible threats, introduce controls at the right stages and verify whether those controls hold under realistic conditions.

Independent review across design, code, dependencies, delivery and production.

Secure Delivery and Threat Path

Design
Threat model
Build
Code control
Integrate
Dependency check
Verify
Security test
Release
Release decision
Operate
Production findings return to design and engineering

Web applications

Customer portals, internal systems and browser-based services.

APIs and integrations

Public, private, partner and machine-to-machine interfaces.

Mobile applications

Native, hybrid and supporting backend services.

Cloud-native services

Containers, serverless functions, microservices and managed platforms.

Desktop and specialist software

Locally executed applications and business-specific clients.

A secure release begins with the decisions made before the first security test.

Applications inherit risk from architecture, business logic, identity design, third-party components, cloud configuration and the delivery systems used to build them. A scanner can identify some weaknesses, but it cannot decide whether a workflow gives the wrong person too much authority or whether a business rule can be abused.

Digisecuritas combines threat analysis, technical verification and programme review to understand how an application could fail and where the development process should prevent that failure from recurring.

Design weakness

The application's trust boundaries and high-risk actions were never examined.

Implementation weakness

Code handles input, authentication, access or sensitive data unsafely.

Dependency weakness

Libraries, services or build components introduce untracked exposure.

Operational weakness

Logging, secrets, configuration or response processes fail after release.

THE SECURE DELIVERY PATH

Every release stage should answer a different security question

STAGE 01

Define and design

What could go wrong, and which outcomes matter most?

Review areas

Business contextSensitive dataUser rolesTrust boundariesAbuse casesExternal dependenciesSecurity requirementsArchitecture decisions

Evidence

Threat model

Security requirements

Architecture risks

STAGE 02

Develop

Are developers building the required controls correctly?

Review areas

Secure coding practicesAuthenticationAuthorisationInput handlingError handlingCryptographySecretsCode-review expectations

Evidence

Code-review findings

Secure coding guidance

Control implementation notes

STAGE 03

Integrate

What risk enters through components, services and automation?

Review areas

Open-source dependenciesThird-party servicesPackage integrityBuild permissionsCI/CD credentialsArtifact handlingInfrastructure templatesAPI integrations

Evidence

Dependency observations

Pipeline-risk findings

Integration requirements

STAGE 04

Verify

Do the security controls work under normal and hostile use?

Review areas

Static analysisDynamic testingManual reviewAPI testingMobile testingBusiness-logic testingAuthentication testingAuthorisation testing

Evidence

Verified findings

Reproduction steps

Risk and remediation guidance

STAGE 05

Release

Is the remaining risk understood and accepted by the right owner?

Review areas

Release criteriaOpen vulnerabilitiesExceptionsRisk acceptanceSecurity evidenceDeployment controlsRollback planningProduction configuration

Evidence

Release-security decision

Exception record

Residual-risk view

STAGE 06

Operate and improve

Can the organisation detect, investigate and learn from production events?

Review areas

Security loggingAlertingRuntime configurationSecrets rotationVulnerability intakeIncident responsePatch processesLessons learned

Evidence

Monitoring requirements

Response actions

Backlog improvements

NIST's Secure Software Development Framework provides high-level practices that can be integrated into different software development lifecycle models. It should be used as a structure for improvement, not as a claim that one delivery model fits every engineering team. NIST SP 800-218

Threat modelling turns architecture into security decisions

The output should identify credible attack paths, affected business outcomes, required controls and the team responsible for resolving each design decision. Do not present threat modelling as a checklist of attack names.

What are we protecting?

Sensitive data
Critical transactions
Administrative functions
Business continuity
Customer trust
Intellectual property

Who or what interacts with it?

Customers
Employees
Administrators
Partners
Applications
External services
Automated agents

Where does trust change?

Browser to application
Application to API
Service to service
Cloud to on-premises
User to administrator
Application to third party
Build system to production

What should prevent misuse?

Strong authentication
Server-side authorisation
Input validation
Transaction controls
Data protection
Logging
Rate and abuse controls

Application security services aligned to how software is built

Application security assessment

Review application architecture, security controls, development practices, supporting infrastructure and production dependencies to establish a current-state risk view.

Typical outputs

Application risk summary

Control-gap register

Prioritised remediation roadmap

Explore this service →

Application threat modelling

Identify assets, actors, trust boundaries, abuse cases and credible attack paths before high-risk decisions become expensive to change.

Typical outputs

Threat model

Abuse-case register

Security control requirements

Explore this service →

Secure SDLC assessment

Assess how security is governed across requirements, design, development, testing, release and production maintenance.

Typical outputs

Secure SDLC maturity view

Process-gap findings

Improvement roadmap

Explore this service →

Architecture security review

Examine how application components, identities, data stores, APIs, cloud services and trust boundaries interact.

Typical outputs

Architecture risk view

Trust-boundary findings

Design recommendations

Explore this service →

Source code security review

Conduct targeted manual and tool-supported review of high-risk code paths, security controls and implementation patterns.

Typical outputs

Evidence-backed code findings

Root-cause observations

Remediation guidance

Explore this service →

Web and API security testing

Test authentication, authorisation, input handling, business logic, data exposure, session controls and abuse resistance within the agreed scope.

Typical outputs

Verified findings

Reproduction guidance

Retest results where included

Explore this service →

Mobile application security assessment

Assess the mobile client and relevant backend services, including credential use, local storage, communication, platform controls and API interaction.

Typical outputs

Mobile security findings

Backend dependency observations

Remediation priorities

Where relevant, use the OWASP Mobile Application Security Verification Standard to structure mobile testing coverage.

Explore this service →

CI/CD and software supply chain review

Review source control, build permissions, pipeline secrets, dependency management, artifact integrity, release controls and production deployment paths.

Typical outputs

Pipeline threat model

Supply-chain findings

Delivery-control roadmap

Explore this service →

A finding matters when it creates a path to business impact

The assessment should explain the full path where evidence supports it. Avoid assigning urgency based only on a scanner label.

1

Entry point

Public interface, user workflow, API, file upload or integration.

2

Trust assumption

The application accepts an identity, input, state or upstream response.

3

Control weakness

A required validation, authorisation or integrity check is absent or ineffective.

4

Application action

The application processes the request with more trust than it should.

5

Privilege or movement

The user reaches another account, function, service or administrative path.

6

Sensitive asset

Data, transactions, configuration, code or business operations are exposed.

7

Business consequence

Fraud, unauthorised access, disruption, data exposure or loss of integrity occurs.

1Validate the request
2Verify the identity
3Authorise server-side
4Constrain application behaviour
5Isolate privilege
6Monitor critical actions
7Prepare response

Different testing methods answer different questions

A useful testing strategy selects methods according to the application's risk, architecture, release frequency and available evidence. More tools do not automatically produce better assurance.

Method

Best suited to

Does not replace

Threat modelling

Design risk, trust boundaries and abuse cases

Technical validation

Static analysis

Repeatable code-pattern detection

Manual reasoning and runtime testing

Dependency analysis

Known component and package exposure

Configuration and business-logic testing

Dynamic testing

Runtime behaviour and exposed interfaces

Source-level review

Manual penetration testing

Chained weaknesses, authorisation and business logic

Secure development governance

Code review

High-risk implementation and control logic

Production configuration review

Configuration review

Runtime, cloud, secrets and deployment settings

Application-level testing

Use standards to define coverage, not to replace judgement

The selected standards and verification depth must reflect the application's purpose, exposure, data sensitivity and consequence of compromise.

OWASP ASVS

Use the Application Security Verification Standard to define and communicate web application security requirements and testing coverage where appropriate.

OWASP describes ASVS as a basis for testing application technical security controls and a requirements source for secure development. OWASP ASVS

OWASP Top 10

Use the OWASP Top 10 as an awareness and risk-communication reference. Do not treat ten categories as a complete application security test plan.

The current released edition is the OWASP Top 10:2025. OWASP Top 10:2025

NIST SSDF

Use the Secure Software Development Framework to structure development practices, responsibilities and improvement activities across the software lifecycle.

NIST SP 800-218 provides high-level practices that can be integrated into different SDLC models. NIST SP 800-218

A security gate should support a decision, not create paperwork

The decision must name the risk owner, required conditions, expiry date and evidence needed to close any exception. Do not display a fictional release score.

Evidence

Threat model status
Test results
Open findings
Dependency status
Configuration review
Security requirements
Retest evidence
Monitoring readiness

Context

Application criticality
Data sensitivity
User population
Internet exposure
Privileged functions
Compensating controls
Release urgency
Recovery capability

Release decision

Proceed
Proceed with approved conditions
Delay for remediation
Escalate residual risk

Application security needs clear ownership inside delivery teams

Security teams should provide standards, assurance and specialist judgment. Engineering teams remain responsible for the security of the software they build and maintain.

Product and business owners

Define critical outcomes
Explain business abuse
Prioritise risk
Accept residual risk

Architecture and engineering

Implement security requirements
Maintain safe design patterns
Resolve findings
Protect delivery systems

Application security

Facilitate threat modelling
Define verification coverage
Review high-risk decisions
Support remediation

Platform and operations

Secure runtime configuration
Protect secrets and pipelines
Monitor production activity
Support response and recovery

HOW WE WORK

Follow the application from business purpose to production evidence

STEP 01

Establish scope

Define the application, interfaces, environments, users, sensitive assets, integrations and testing restrictions.

STEP 02

Understand the design

Review architecture, data flows, trust boundaries, identity, high-risk actions and external dependencies.

STEP 03

Model credible threats

Identify abuse paths that could affect confidentiality, integrity, availability, customers or business operations.

STEP 04

Verify controls

Select appropriate manual and tool-supported testing methods according to risk and scope.

STEP 05

Validate findings

Confirm exploitability, affected components, business consequence and available compensating controls.

STEP 06

Prioritise improvement

Deliver immediate remediation actions and longer-term changes to design, engineering and delivery practices.

Safety statement: Testing must follow written rules of engagement. Destructive testing, denial-of-service activity and access to real customer data require separate explicit authorisation.

A useful finding explains more than the vulnerable endpoint

Group repeated findings by root cause where appropriate. Avoid producing dozens of duplicate tickets when one engineering change can address the underlying pattern.

Finding element

Question answered

Condition

What is wrong?

Evidence

How was it verified?

Attack path

How could it be misused?

Business consequence

What could be affected?

Root cause

Why did the weakness enter or remain?

Remediation

What should change?

Owner

Which team controls that change?

Verification

How will closure be confirmed?

What your organisation receives

Security evidence that product and engineering teams can use.

Executive application-risk briefing
Application and trust-boundary overview
Threat model
Evidence-backed findings register
Business-logic observations
Authentication and authorisation findings
API and integration risks
Code and dependency observations
CI/CD and release-control findings
Root-cause analysis
Prioritised remediation roadmap
Secure development recommendations
Retest report where included
Technical and executive readout sessions

Deliverables depend on the application type, agreed scope, evidence available and testing methods authorised.

When organisations bring Digisecuritas in

SCENARIO 01

Before a high-risk launch

A new customer platform, API, mobile application or critical workflow needs independent threat analysis and security verification before release.

SCENARIO 02

When security testing happens too late

Findings repeatedly appear near release because security requirements and design reviews are missing earlier in delivery.

SCENARIO 03

After development has scaled

More teams, repositories, cloud services and dependencies have made security coverage inconsistent and difficult to govern.

SCENARIO 04

Following an application-led incident

The organisation needs to understand the technical weakness, attack path and development-process failure that allowed the event.

Independent application assurance beyond scanner output

Threat before test volume

Testing is shaped around the application's architecture, sensitive actions and credible abuse paths.

Design and runtime evidence

The assessment connects requirements, code, dependencies, configuration and production behaviour.

Business-logic attention

Manual analysis examines whether valid features can be combined or misused in unintended ways.

Remediation that improves delivery

Findings include root causes and process changes where the weakness could otherwise return.

Related solutions

Offensive Security

Validate broader attack paths through penetration testing and adversarial exercises.

Learn more →

Cloud Security

Assess the cloud services and configurations supporting the application.

Learn more →

Identity & Access Security

Strengthen authentication, authorisation and privileged access.

Learn more →

Data Protection & Privacy

Protect sensitive information processed by applications and APIs.

Learn more →

AI Security

Assess applications that use models, agents, prompts and AI data flows.

Learn more →

Application security questions, answered clearly

START WITH THE APPLICATION THAT MATTERS MOST

Find the threats that routine testing may miss

Tell us what the application does, where it is exposed and what a security failure could affect. We will help define the right review and testing scope.

Book an Application Security ConsultationDiscuss Your Application

Independent assessment • Evidence-led testing • Practical remediation