policy Enterprise

Outsourced Development Policy

Ensure secure, compliant outsourced development with robust controls, vendor governance, and SDLC practices to protect your organization's software.

Overview

The Outsourced Development Policy defines mandatory security, governance, and compliance controls for engaging third-party software developers, ensuring secure coding, proper vendor oversight, and risk-managed outsourced development throughout the organization.

End-to-End Vendor Security

Mandates due diligence, risk assessment, and secure coding for all third-party development partners.

Contractual Compliance

Requires legally binding security, IP ownership, and audit rights in every development agreement.

Comprehensive Access Control

Defines strict access, monitoring, and offboarding for external developers to safeguard code and systems.

Aligned with Major Standards

Supports ISO/IEC 27001, NIST, GDPR, NIS2, DORA, and COBIT 2019 compliance for third-party development.

Read Full Overview
The Outsourced Development Policy (P28) establishes a comprehensive framework for securely managing software or system development projects executed by external vendors, contractors, or agencies. Its primary purpose is to embed security controls and governance mechanisms throughout the entire development lifecycle, from planning and contract negotiation to delivery, monitoring, and post-engagement activities. By mandating a clearly defined set of security obligations, ranging from due diligence checks and risk assessments to enforced coding standards and contractual requirements, the policy aims to safeguard the confidentiality, integrity, and availability of all organization-developed software. The scope of the policy extends to any company initiative that involves third-party development, including web and mobile applications, embedded systems, APIs, internal and commercial platforms, and automation workflows. Notably, it also governs any external entity requiring access to the organization's source code, test environments, or CI/CD pipelines. The requirements apply regardless of where or how the vendor operates, ensuring geographical or contractual distinctions do not create security gaps. The policy's objectives are rooted in minimizing exposure to supply chain threats, legal non-compliance (such as with GDPR or DORA), intellectual property theft, and insecure coding practices that could introduce vulnerabilities or regulatory risk. To achieve this, it assigns explicit responsibilities to Executive Management, CISOs, Procurement and Legal, Project and Product Owners, Information Security, and external vendors. Central to this approach is the Third-Party Development Register, a single source of truth for all vendor engagements, due diligence findings, exception logs, and contract statuses. Governance requirements include vendor due diligence, security risk assessment, and a set of minimum contractual controls, such as adherence to secure coding frameworks, security testing, IP ownership specifications, NDA executions, and right-to-audit clauses. Source code is managed exclusively through enterprise-controlled platforms, with branch protection, peer review, and strict offboarding protocols preventing code leakage or unauthorized reuse. All third-party access is provisioned under time-bound, least-privilege governance, monitored via audit logs, and rapidly revoked upon engagement closure. Integration of vendor repositories into enterprise security tools for code analysis, CI/CD policy enforcement, and deviation management is required whenever feasible. Exception requests are handled through a formal risk treatment and approval process led by the CISO, including documentation of justification, risk mitigation, and remediation timelines. The Information Security Team conducts ongoing monitoring and compliance audits, with violations resulting in immediate access revocation, project suspension, legal action, or disciplinary measures as appropriate. This policy is reviewed at least annually or following changes in the regulatory landscape, incident response findings, or internal audit outputs. All changes are version controlled, communicated, and referenced in procedural documentation. Through these mechanisms and its close mapping to leading international standards and legal mandates, the Outsourced Development Policy ensures third-party software delivery remains secure and compliant, shielding the organization from the evolving risks of outsourced development.

Policy Diagram

Outsourced Development Policy diagram showing the lifecycle: vendor due diligence, contract controls, secure development, access management, monitoring, offboarding, and exception handling steps.

Click diagram to view full size

What's Inside

Scope and Rules for Outsourced Development

Third-Party Risk and Due Diligence Requirements

Mandatory Contractual Controls

Source Code Management Obligations

Exception and Risk Treatment Process

Compliance Monitoring and Enforcement

Framework Compliance

🛡️ Supported Standards & Frameworks

This product is aligned with the following compliance frameworks, with detailed clause and control mappings.

Framework Covered Clauses / Controls
ISO/IEC 27001:2022
8.1
ISO/IEC 27002:2022
NIST SP 800-53 Rev.5
EU GDPR
2832
EU NIS2
EU DORA
COBIT 2019

Related Policies

Audit And Compliance Monitoring Policy

Provides requirements for reviewing outsourced development activities during audits or compliance reviews.

Information Security Policy

Establishes enterprise-level security principles that apply across internal and third-party development contexts.

Change Management Policy

Ensures all deployment-related changes from outsourced codebases are reviewed and approved prior to implementation.

Data Classification And Labeling Policy

Determines how sensitive data is identified before being exposed to development vendors or repositories.

Cryptographic Controls Policy

Guides how keys, secrets, and sensitive credentials must be handled during development and delivery.

Secure Development Policy

Defines baseline requirements for internal and external software development practices.

Incident Response Policy

Governs how breaches or security issues involving outsourced development are escalated, investigated, and resolved.

About Clarysec Policies - Outsourced Development Policy

Effective security governance requires more than just words; it demands clarity, accountability, and a structure that scales with your organization. Generic templates often fail, creating ambiguity with long paragraphs and undefined roles. This policy is engineered to be the operational backbone of your security program. We assign responsibilities to the specific roles found in a modern enterprise, including the CISO, IT Security, and relevant committees, ensuring clear accountability. Every requirement is a uniquely numbered clause (e.g., 5.1.1, 5.1.2). This atomic structure makes the policy easy to implement, audit against specific controls, and safely customize without affecting document integrity, transforming it from a static document into a dynamic, actionable framework.

Centralized Third-Party Register

Requires all outsourced development projects to be logged and tracked for audit, oversight, and compliance.

Defined Role-Based Accountability

Specifies clear responsibilities for management, CISO, procurement, and security teams in each engagement.

Integrated Monitoring & Tooling

Mandates security tool integration with vendor code, with automated compliance gates and active alert escalation.

Frequently Asked Questions

Built for Leaders, By Leaders

This policy was authored by a security leader with 25+ years of experience deploying and auditing ISMS frameworks for global enterprises. It's designed not just to be a document, but a defensible framework that stands up to auditor scrutiny.

Authored by an expert holding:

MSc Cyber Security, Royal Holloway UoL CISM CISA ISO 27001:2022 Lead Auditor & Implementer CEH

Coverage & Topics

🏢 Target Departments

IT Security Compliance Procurement Vendor Management

🏷️ Topic Coverage

Outsourced Development Secure Development Lifecycle Vendor Management Security of Network Services Policy Management
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Outsourced Development Policy

Product Details

Type: policy
Category: Enterprise
Standards: 7