Overview
Data sharing has become essential to modern business strategy. Joint ventures analyse combined datasets. Insurance companies access claims data from healthcare providers. Retailers share transaction data with marketing partners. Financial institutions exchange information for fraud prevention. Each of these arrangements involves the transfer of personal data between organisations that each determine their own processing purposes - a fundamentally different relationship from the controller-processor dynamic addressed in data processing agreements.
In a data sharing arrangement between Data Fiduciaries (controllers in GDPR terminology), each party bears independent accountability for its processing of the shared data. The agreement cannot transfer this accountability - instead, it creates the framework within which each party exercises its responsibilities. Purpose limitations, use restrictions, and security obligations in the agreement constrain what each Fiduciary may do with the data, but each remains independently answerable to data principals and regulators.
This independence creates unique drafting challenges. The agreement must clearly delineate what data is shared, the permitted purposes for each party, and the obligations each assumes. It must address scenarios where one party's misuse creates liability or reputational exposure for the other. It must establish governance mechanisms for managing the ongoing relationship without creating confusion about independent accountability.
Key Considerations
Purpose Definition
Clear specification of the purposes for which each party may use the shared data, with appropriate restrictions on secondary uses.
Data Scope
Precise definition of what data elements are shared, including any anonymisation, aggregation, or minimisation requirements.
Legal Basis Alignment
Ensuring each party has appropriate legal basis under DPDPA for both the sharing and subsequent processing.
Security Standards
Minimum security requirements each party must implement, with verification mechanisms.
Data Principal Transparency
Addressing how data principals are informed about the sharing and their rights exercised across parties.
Breach Coordination
Protocols for notifying each other of breaches and coordinating response to shared data incidents.
Applying the TCL Framework
Technical
- Understanding the data architecture and sharing mechanisms
- Evaluating security measures of all parties
- Assessing data quality and format standardisation needs
- Reviewing anonymisation or pseudonymisation requirements
- Understanding audit and monitoring capabilities
Commercial
- Valuing the data contribution of each party
- Structuring compensation or value exchange
- Addressing exclusivity and competitive restrictions
- Allocating costs of compliance and security measures
- Managing relationship duration and exit
Legal
- Confirming legal basis for each party's processing
- Drafting purpose limitations that are workable
- Structuring liability allocation for data misuse
- Addressing regulatory notification obligations
- Creating dispute resolution appropriate to ongoing relationships
"Data sharing agreements cannot transfer accountability - each party remains a Data Fiduciary with independent obligations. The agreement's function is to create the constraints within which each party exercises that responsibility, and the coordination mechanisms when those responsibilities intersect."
Common Pitfalls
Consent Confusion
Assuming one party's consent covers the other party's processing, when each Data Fiduciary needs its own legal basis.
Purpose Creep
Broadly drafted purpose clauses that allow uses never contemplated by data principals when consenting.
Security Assumptions
Not verifying that the receiving party has adequate security measures before sharing sensitive data.
Joint Controller Confusion
Creating arrangements that function as joint controllership without implementing required joint controller provisions.
Exit Complexity
Failing to address what happens to shared data when the relationship ends, creating ongoing compliance obligations.
Data Sharing Under DPDPA
Under DPDPA, each Data Fiduciary in a sharing arrangement bears independent responsibility for lawful processing. Sharing personal data requires appropriate legal basis - typically consent that encompasses the sharing and the recipient's use, or legitimate uses provisions where applicable. Data principals must be informed about sharing as part of notice obligations. Both sharing and receiving Fiduciaries must implement reasonable security safeguards. Sector-specific rules may impose additional requirements - healthcare data sharing, financial data exchange, and telecom data sharing each have supplementary regulatory frameworks.
Practical Guidance
- Document the business justification for data sharing before designing the legal framework.
- Assess whether the arrangement is truly controller-to-controller or involves processor elements.
- Ensure your privacy notices and consent mechanisms cover the contemplated sharing.
- Conduct due diligence on potential sharing partners' compliance posture.
- Build governance mechanisms for ongoing relationship management.
- Plan for data return, deletion, or transition at relationship end.
Frequently Asked Questions
Related Practice Areas
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