Non-Disclosure Agreement (NDA)
Definition
A Non-Disclosure Agreement (NDA) is a legal agreement that restricts how confidential information may be accessed, used, shared, stored, or disclosed. Organizations use NDAs to protect sensitive business, technical, financial, operational, customer, employee, vendor, or security-related information when working with employees, contractors, vendors, investors, auditors, partners, or prospective customers. In information security and GRC, an NDA helps define confidentiality obligations before a person or organization receives non-public information, such as source code, security reports, architecture diagrams, incident details, pricing data, product roadmaps, due diligence materials, or internal policies. For organizations subject to the Philippines Data Privacy Act, NDAs can support confidentiality and organizational security obligations when personal information or sensitive personal information is shared with employees, service providers, contractors, or other authorized recipients. Similar confidentiality expectations also appear in other privacy and security frameworks, including GDPR, ISO/IEC 27001, and SOC 2, where organizations must control access to non-public or regulated information. An NDA typically identifies what information is confidential, who may access it, permitted uses, disclosure restrictions, return or destruction requirements, duration of confidentiality, exclusions for already-known or publicly available information, and consequences for unauthorized disclosure. NDAs do not replace access controls, data classification, secure file sharing, vendor risk management, or employee training, but they provide an important contractual layer that supports confidentiality, accountability, and compliance with applicable regulations, security frameworks, and internal policies.
Real-World Examples
Vendor Security Review
An organization signs an NDA before sharing security questionnaires, penetration test summaries, architecture diagrams, or internal control documentation with a prospective customer or vendor.
Employee Confidentiality
A startup requires employees to sign an NDA covering customer data, product plans, source code, incident reports, and other confidential business information.
Mutual Partner Evaluation
Two organizations use a mutual NDA before exchanging technical integration details, pricing models, security controls, and commercial strategy during partnership discussions.
Contractor Access
A business requires an external developer or consultant to sign an NDA before granting access to internal systems, documentation, repositories, or project data.
A Non-Disclosure Agreement (NDA) is a legal contract that requires one or more parties to keep specified information confidential. It is commonly used before sharing sensitive business, technical, customer, security, financial, or operational information with employees, vendors, contractors, partners, investors, or customers.
An NDA usually covers non-public information such as customer data, business plans, financial information, source code, product roadmaps, security documentation, pricing, vendor details, incident information, intellectual property, and internal procedures. The agreement should clearly define what is considered confidential and what is excluded.
A company should use a non-disclosure agreement before sharing confidential information with another party, especially during vendor evaluations, sales discussions, employment relationships, contractor engagements, audits, partnership negotiations, acquisitions, or technical integrations. The NDA should be signed before sensitive materials are disclosed.
An NDA and a confidentiality agreement are often used to describe the same type of contract. In practice, both are designed to protect confidential information, define permitted use, restrict disclosure, and describe the obligations of the receiving party.
A one-way NDA protects information shared by one party with another party, such as a company sharing confidential information with a contractor. A mutual NDA protects confidential information exchanged by both parties, such as two companies evaluating a partnership or integration.
The duration of a non-disclosure agreement depends on the contract terms and the type of information being protected. Some NDAs apply for a fixed period, such as two to five years, while obligations for highly sensitive information may continue for as long as the information remains confidential.
NDA enforceability depends on the applicable jurisdiction, contract wording, public policy limits, and the facts of the situation. Organizations should ensure the agreement is reasonable, specific, properly executed, and reviewed by qualified legal counsel when operating across multiple regions.
Security and compliance teams should look for clear definitions of confidential information, permitted use, access limitations, security obligations, disclosure restrictions, breach notification expectations, return or destruction requirements, subcontractor controls, confidentiality duration, and alignment with internal data handling policies.
NDAs support information security and GRC programs by creating contractual accountability for protecting sensitive information. They help reinforce confidentiality obligations, support vendor and workforce governance, reduce unauthorized disclosure risk, and provide evidence that the organization manages access to non-public information responsibly.
If someone breaches a non-disclosure agreement, the organization may pursue contract remedies such as damages, injunctive relief, termination of access, termination of the business relationship, or other remedies allowed by the agreement and applicable law. The organization should also assess security impact and document the incident.
| Version | Date | Author | Description |
|---|---|---|---|
| 1.0.0 | 2026-05-10 | WatchDog GRC Team | Initial publication |
