Updated: May 16, 2026
Direct answer: For DeepSeek’s official hosted services, yes: DeepSeek’s current Privacy Policy says it directly collects, processes, and stores personal data in the People’s Republic of China. That does not automatically mean every DeepSeek-based deployment stores data in China. DeepSeek’s official web app, mobile app, and hosted API should be assessed separately from third-party hosted DeepSeek models and self-hosted deployments, where data residency depends on the provider, cloud region, logs, backups, and infrastructure controls.
TL;DR
- DeepSeek’s official Privacy Policy says personal data may be stored outside the user’s country and that DeepSeek directly collects, processes, and stores personal data in the People’s Republic of China.
- DeepSeek may collect account data, prompts, uploaded files, photos, chat history, device/network data, logs, approximate IP-based location, and payment/order data for paid open platform services.
- API users should not assume a separate EU or US data residency option unless DeepSeek provides verified contractual or technical documentation for that specific service.
- DeepSeek’s API documentation describes disk-based context caching enabled by default, with cache entries usually cleared within a few hours to a few days.
- Self-hosted DeepSeek models can offer stronger data residency control, but only if your cloud region, VPC, logs, monitoring, backups, and access controls are configured correctly.
- For EU/EEA personal data, China-based processing can trigger GDPR Chapter V international transfer analysis because China is not listed by the European Commission as an adequate jurisdiction.
- Businesses should treat DeepSeek’s official hosted services as a China-processing service unless their own reviewed contract, DPA, or verified vendor documentation says otherwise.
How this page fits our privacy guides: This article focuses specifically on DeepSeek data residency, processing location, cross-border transfer risk, and the difference between hosted, API, third-party, and self-hosted deployments. For broader data collection details, GDPR analysis, workplace rules, and “what not to paste” guidance, use the dedicated guides linked below.
What Does “DeepSeek Data Residency” Mean?
Data residency means the country or region where data is stored or processed. In AI systems, this includes prompts, uploaded files, generated outputs, conversation history, API logs, cache data, telemetry, support records, and backups.
Data processing location is broader than storage. Data may be transmitted to a model endpoint, processed in memory, cached, logged for safety or debugging, used for analytics, or retained for account and service operations. DeepSeek’s Terms of Use describe its services as including websites, applications, SDKs, APIs, and other generative AI services, so “DeepSeek data residency” should be assessed across each product channel, not just the chat interface.
Data sovereignty refers to the legal and regulatory control that may apply because data is stored or processed in a particular jurisdiction. For compliance teams, the practical question is not only “Where is DeepSeek data stored?” but also “Which laws, government access rules, vendor obligations, and transfer mechanisms apply?”
Cross-border data transfer means personal data moves from one jurisdiction to another. Under the GDPR, transfers from the EEA to a third country require either an adequacy decision, appropriate safeguards, or another lawful transfer basis. Article 46 of the GDPR requires appropriate safeguards and enforceable rights when there is no adequacy decision.
Where Does DeepSeek Process and Store Data?
As of May 16, 2026, the most important source is DeepSeek’s Privacy Policy, last updated February 10, 2026. The policy says it applies to personal data processed in connection with DeepSeek apps, websites, software, and related services that link to or reference the policy. It also identifies Hangzhou DeepSeek Artificial Intelligence Co., Ltd. as the data controller for those services.
The key data residency statement appears under “Where We Store Your Personal Data.” DeepSeek states that personal data may be stored on a server outside the user’s country and that, to provide the services, it directly collects, processes, and stores personal data in the People’s Republic of China.
That wording is important. It means companies should not describe DeepSeek’s official services as region-neutral or EU-resident unless they have separate verified documentation. The public Privacy Policy points to PRC processing and storage for personal data handled by DeepSeek’s official services.
There is also an important downstream-app caveat. DeepSeek’s Privacy Policy says the processing rules for personal data collected from end users of downstream systems or applications built using DeepSeek’s open platform are not covered by that Privacy Policy; the developer operating the application is responsible for disclosing its own processing policy.
What Data Can DeepSeek Collect?
DeepSeek’s Privacy Policy groups personal data into three categories: data users provide, automatically collected data, and data from other sources.
| Data category | Examples | Why it matters for data residency |
|---|---|---|
| Account data | Date of birth where applicable, username, email address, phone number, password | Can identify the user and may be retained while the account exists |
| User input | Text input, voice input, prompts, uploaded files, photos, feedback, chat history | This is the highest-risk category for business users because it may contain personal data, confidential documents, source code, or trade secrets |
| Contact data | Identity or age proof, contact details, feedback, inquiries | May be processed in support and compliance workflows |
| Device and network data | Device model, operating system, IP address, device identifiers, system language, crash reports, performance logs | Useful for security and diagnostics, but still relevant to privacy analysis |
| Log data | Features used and actions taken | May reveal usage patterns and business workflows |
| Location data | Approximate location based on IP address | Can trigger privacy review even if precise geolocation is not collected |
| Payment/order data | Payment order and transaction data for paid open platform services | Relevant to API and enterprise billing records |
DeepSeek also says its services are not designed or intended to process sensitive personal data and tells users not to provide sensitive personal data such as health, biometric, children’s, precise geolocation, or criminal-related data.
Is DeepSeek Data Stored in China?
For DeepSeek’s official services, yes. DeepSeek says it directly collects, processes, and stores personal data in the People’s Republic of China. That is the cleanest answer to the keyword question “is DeepSeek data stored in China?”
However, there are three edge cases businesses should understand.
First, third-party apps using DeepSeek or the Open Platform may have their own data flows. DeepSeek says downstream systems built by developers are not covered by the same Privacy Policy, and the developer operating the downstream application is the controller responsible for its own disclosures.
Second, API integrations may involve additional technical behavior. DeepSeek’s Open Platform terms say developers can integrate DeepSeek model capabilities into downstream systems for internal organizational use or end users, and that model processing turns inputs into outputs. The same terms also make developers responsible for their downstream systems, applications, and end-user obligations.
Third, self-hosted deployments are different. DeepSeek says it publicly releases model weights, parameters, and inference tool code under a permissive MIT License, allowing users to download and deploy them. If your organization runs a DeepSeek model in its own cloud region, private VPC, or on-prem environment, the data residency question shifts from DeepSeek’s hosted service to your own infrastructure design.
DeepSeek API Data Residency: What Developers Should Know
DeepSeek API data residency requires a stricter review than casual chat use because API prompts and outputs can include production records, customer data, source code, tickets, financial analysis, contracts, or internal strategy.
DeepSeek’s API reference points developers to the Open Platform Terms of Service, and the Open Platform terms say the API service processes input to produce output.
DeepSeek’s API documentation also describes Context Caching on Disk. The current guide says the disk-based context caching technology is enabled by default for all users and that each user request triggers construction of a hard disk cache. It also states that once cache is no longer used, it is usually cleared within a few hours to a few days.
For developers, this means the API should be reviewed for at least five issues before production use: processing region, retention, cache behavior, logging, and training/optimization terms. DeepSeek’s Privacy Policy says users may have the right to opt out of using personal data for training or optimizing technologies, but API customers should verify how that right or setting applies to their specific account, contract, and integration.
Developer checklist:
- Do not send API keys, passwords, private certificates, or production secrets.
- Avoid customer PII unless legal, security, and data protection teams approve the use case.
- Confirm whether a DPA, SCCs, or equivalent transfer terms are available.
- Review logging, retention, and disk-cache behavior.
- Use redaction, tokenization, or pseudonymization before sending sensitive inputs.
- Consider self-hosted, VPC-hosted, or region-controlled alternatives for regulated workloads.
- Follow DeepSeek’s Open Platform warning not to expose API keys in browser or client-side code.
DeepSeek Self-Hosted Data Residency
DeepSeek self-hosted data residency is fundamentally different from using DeepSeek’s official hosted app or API.
DeepSeek’s official model documentation says its models are open-source and that model weights, parameters, and inference tool code are publicly released for download and deployment. Its GitHub documentation for DeepSeek-V3 also describes local deployment using tools such as DeepSeek-Infer, SGLang, LMDeploy, TensorRT-LLM, vLLM, LightLLM, AMD GPU support, and Huawei Ascend support.
For self-hosted deployments, always verify the license of the exact model variant you deploy. DeepSeek’s public materials describe open model releases, but repository and model-license details can differ by model. For example, DeepSeek-R1 is MIT licensed, while DeepSeek-V3’s GitHub repository lists the code under MIT and the model under a separate model license with commercial use supported.
Self-hosting gives the organization more control over where prompts, outputs, logs, caches, embeddings, and backups live. But it does not automatically solve privacy. A self-hosted model can still leak data through poor access control, excessive logging, insecure monitoring tools, exposed endpoints, misconfigured cloud storage, or third-party observability platforms.
| Use case | Where data may be processed | Data residency control | Best for | Key risk |
|---|---|---|---|---|
| DeepSeek official web/chat app | DeepSeek’s official service environment, with personal data processed and stored in the PRC according to the Privacy Policy | Low | Public or low-risk use | Users may paste confidential or personal data |
| DeepSeek mobile app | DeepSeek’s official app/service environment | Low | Consumer-style general use | Device, network, prompt, and chat data may be collected |
| DeepSeek official API | DeepSeek Open Platform infrastructure, subject to API terms and technical behavior such as disk caching | Medium to low unless contractually clarified | Developer experimentation and non-sensitive automation | Prompts, outputs, logs, and cache behavior require review |
| Third-party hosted DeepSeek model | The third-party provider’s cloud, region, and contract | Varies | Teams needing managed hosting outside DeepSeek’s own service | Provider claims must be verified |
| Self-hosted/on-prem DeepSeek model | Your own cloud, VPC, data center, or private infrastructure | High, if engineered correctly | Regulated, confidential, or data residency-sensitive workloads | Operational burden and security misconfiguration |
DeepSeek, China, and Data Sovereignty
China-based processing matters because data sovereignty is not only a technical hosting question. It affects vendor risk management, regulatory review, public-sector procurement, incident response, employee AI policy, and international transfer analysis.
The Berlin Commissioner for Data Protection stated in June 2025 that DeepSeek transfers personal data collected from users to Chinese data processors and stores it on servers in China. The same press release said the EU has not issued an adequacy decision for China and alleged a violation of GDPR Article 46(1) by the DeepSeek service.
This does not mean every organization must ban every DeepSeek-related technology. It means the review should be specific. Official hosted DeepSeek, a third-party DeepSeek endpoint, and an on-prem DeepSeek model are different risk profiles.
GDPR and DeepSeek Cross-Border Data Transfer
This section is not legal advice.
For EU/EEA personal data, the central issue is whether using DeepSeek’s official hosted services creates an international transfer to China and, if so, whether the organization has a lawful transfer basis and appropriate safeguards.
The European Commission’s adequacy page explains that an adequacy decision allows personal data to flow from the EU, Norway, Liechtenstein, and Iceland to a third country without further safeguards. The Commission’s current list of recognized jurisdictions includes countries and frameworks such as Japan, the Republic of Korea, the UK, and the EU-US Data Privacy Framework for participating US organizations; China is not on that list.
In the absence of an adequacy decision, the EDPB says organizations may transfer personal data where appropriate safeguards are provided and individuals can exercise rights and effective remedies. The EDPB lists Article 46 transfer tools such as SCCs, BCRs, codes of conduct, certification mechanisms, and ad hoc contractual clauses.
For a business, this usually means the privacy, legal, and DPO teams should ask:
- Is personal data being sent to DeepSeek?
- Is the data transferred from the EEA, UK, or Switzerland to China?
- Are SCCs, a DPA, or other transfer terms available?
- Has a transfer impact assessment been completed?
- Are supplementary measures possible, such as encryption, redaction, pseudonymization, or strict access controls?
- Is the use case necessary, proportionate, and aligned with company policy?
Italy’s data protection authority, the Garante, announced on January 30, 2025 that it ordered an urgent limitation on the processing of Italian users’ data by the companies providing the DeepSeek chatbot service and opened an investigation after finding the companies’ response insufficient.
Should Businesses Use DeepSeek for Sensitive Data?
For low-risk use, DeepSeek may be acceptable where employees use it only for public information, generic brainstorming, non-sensitive drafting, or learning tasks that do not involve personal data, confidential business information, source code secrets, credentials, regulated data, or customer records.
For high-risk use, businesses should be cautious. Do not send customer PII, employee data, health records, financial records, legal documents, non-public contracts, credentials, private source code, vulnerability details, board materials, M&A plans, confidential strategy, or export-controlled information into DeepSeek’s official hosted services unless the organization has completed a formal legal and security review.
A practical policy is better than a vague warning. Companies should create an AI acceptable use policy that defines approved tools, prohibited data categories, approved API use cases, review workflows, logging requirements, and enforcement.
Business Checklist Before Using DeepSeek
Use this checklist before approving DeepSeek for teams, developers, or enterprise workflows.
- Identify the exact DeepSeek channel: web app, mobile app, official API, third-party hosted model, or self-hosted model.
- Classify the data: public, internal, confidential, personal data, sensitive personal data, regulated data, or secrets.
- Confirm processing and storage location using official documentation or contract terms.
- Review DeepSeek’s Privacy Policy, Terms of Use, and Open Platform terms.
- Check retention, chat history, API caching, logging, and training/optimization settings.
- Assess GDPR, UK GDPR, Swiss FADP, sector rules, public-sector rules, and internal data residency requirements.
- Verify whether a DPA, SCCs, transfer impact assessment, or equivalent safeguard is available.
- Evaluate self-hosting or VPC-controlled deployment for sensitive workloads.
- Apply DLP, redaction, pseudonymization, secret scanning, and endpoint monitoring.
- Train employees not to paste sensitive data into unapproved AI tools.
- Monitor usage through CASB, proxy, browser controls, or endpoint controls where appropriate.
- Document the risk assessment and revisit it when DeepSeek changes its policies or API behavior.
DeepSeek Data Residency FAQ
Where does DeepSeek process data?
For its official services, DeepSeek’s Privacy Policy says it directly collects, processes, and stores personal data in the People’s Republic of China.
Where is DeepSeek data stored?
DeepSeek says personal data may be stored on a server outside the user’s country and that it directly collects, processes, and stores personal data in the PRC for service delivery.
Is DeepSeek data stored in China?
For DeepSeek’s official hosted services, yes, based on the current Privacy Policy. Self-hosted or third-party hosted DeepSeek deployments may have different data locations depending on the infrastructure provider and configuration.
Does DeepSeek store prompts?
DeepSeek’s Privacy Policy says it may collect user input, including text input, voice input, prompts, uploaded files, photos, feedback, chat history, and other content provided to the model and services.
Does DeepSeek use data for training?
DeepSeek says it uses personal data to improve and develop services and to train and improve its technology, including machine learning models and algorithms. The Privacy Policy also lists a right to opt out of using personal data for training or optimizing technologies.
What is DeepSeek API data residency?
DeepSeek API data residency refers to where API prompts, outputs, logs, cache entries, account records, and payment/order records are processed or stored. API customers should review the Open Platform terms, Privacy Policy, and API documentation before sending personal or confidential data.
Is DeepSeek GDPR compliant?
There is no simple public yes/no answer for every use case. GDPR compliance depends on the data, user location, controller/processor roles, lawful basis, transparency, transfer mechanism, safeguards, and contract terms. The Berlin Commissioner alleged that DeepSeek’s service violated GDPR Article 46(1) for transfers to China.
Does DeepSeek support EU data residency?
Based on the public official documents reviewed for this article, DeepSeek’s official Privacy Policy points to PRC processing and storage for personal data, and the official API docs reviewed do not present a public EU-hosted data residency option. Organizations should verify any region-specific commitment directly in signed vendor documentation.
What is the DeepSeek cross-border data transfer risk?
The main risk is that EU/EEA personal data may be transferred to China without an adequacy decision, requiring an Article 46 transfer tool and assessment of whether enforceable rights and effective remedies are available.
Is self-hosted DeepSeek better for data residency?
Usually, yes, if implemented correctly. Self-hosting can keep data in a chosen cloud region, VPC, or on-prem environment, but the organization must still secure logs, backups, monitoring tools, user access, and model endpoints.
Can businesses use DeepSeek with confidential data?
Businesses should not use DeepSeek’s official hosted services for confidential or regulated data unless legal, security, and privacy teams approve the use case and required contractual safeguards are in place.
What should companies do before approving DeepSeek?
Companies should classify the data, identify the exact DeepSeek deployment, verify processing location, review policies and API terms, assess GDPR transfer requirements, evaluate self-hosting, and document the risk decision.
Conclusion
DeepSeek can be useful for non-sensitive work, experimentation, and technical exploration. But organizations with strict data residency, GDPR, data sovereignty, confidentiality, or regulated-data obligations should treat DeepSeek’s official hosted services as a China-processing service unless their own verified contract or vendor documentation says otherwise.
The safest enterprise approach is to separate use cases. Public brainstorming and low-risk research may be handled under a controlled acceptable use policy. Sensitive business data, customer PII, employee records, source code secrets, legal documents, health data, financial records, and regulated workloads should require formal approval, stronger safeguards, or a self-hosted or region-controlled deployment.
Self-hosted DeepSeek models may offer the best path for data residency control, but they still require serious governance. Data residency is not just where the model runs. It is also where prompts, outputs, logs, caches, backups, monitoring data, and support records go.