Polymarket — Privacy

Information We Collect on Polymarket

When you access and use Polymarket, the platform collects several categories of personal and technical information to facilitate its services. Account registration may require you to provide an email address, cryptocurrency wallet address, and identity verification documents depending on your jurisdiction and trading activity level. The exchange also collects information you voluntarily submit through support requests, surveys, and communications with the team. Automatically collected data includes your IP address, browser type, device identifiers, operating system, and pages visited within the service. On-chain data, including your wallet address and all transaction history associated with markets on the platform, is inherently public due to the nature of blockchain technology. This information is collected to provide, maintain, and improve the services offered, as well as to meet applicable legal and regulatory obligations.

How Polymarket Uses Your Data

The platform uses collected information primarily to operate and deliver its prediction market services, including processing trades, settling markets, and maintaining account records. Data is also used to communicate with users about account activity, policy changes, security alerts, and platform updates. The service analyzes aggregated usage data to improve the user experience, optimize platform performance, and develop new features. Where required by applicable law, this exchange uses identity information to conduct KYC and AML screening. The platform may use your contact information to send you promotional communications, provided you have not opted out of such correspondence. All data usage practices are designed to align with the purposes for which the information was originally collected, ensuring that your data is never used in ways that would be incompatible with your reasonable expectations.

Cookies and Tracking Technologies

Polymarket uses cookies, web beacons, pixel tags, and similar tracking technologies to enhance your browsing experience and collect usage data. Session cookies are used to maintain your login state and preferences during an active visit to the platform. Persistent cookies may be stored on your device to remember your settings and provide a more personalized experience on return visits. The service also uses analytics cookies from third-party providers to understand how users interact with the exchange and to measure the effectiveness of various features. You can control cookie settings through your browser preferences, although disabling certain cookies may impair the functionality of the platform. By continuing to use the service after being notified of cookie usage, you consent to the placement of cookies as described in this policy.

Third-Party Data Sharing

The platform does not sell your personal information to third parties for their independent marketing purposes. However, certain trusted service providers receive access to your data to help operate the exchange, including cloud hosting providers, payment processors, identity verification services, and analytics platforms. These partners are contractually bound to use your information only for the specific purposes authorized by this service and must implement appropriate data security measures. The platform may disclose your information to law enforcement, regulatory authorities, or other government bodies when legally required to do so or when disclosure is necessary to protect the rights and safety of users and the public. In the event of a merger, acquisition, or sale of assets, user data may be transferred to the successor entity as part of that transaction, with prior notice provided where required by applicable law. All third-party relationships are carefully managed to minimize privacy risk to users of this exchange.

Data Security Practices

Polymarket employs a comprehensive set of technical and organizational security measures to protect your personal information from unauthorized access, disclosure, alteration, and destruction. All data transmitted between your device and the platform's servers is encrypted using industry-standard TLS protocols. Sensitive personal information, including identity verification documents, is stored with encryption at rest using AES-256 or equivalent standards. Access to personal data within the organization is restricted on a strict need-to-know basis, and all personnel with data access are subject to confidentiality obligations. The platform conducts regular security audits, vulnerability assessments, and penetration tests to identify and remediate potential weaknesses. While no system can guarantee absolute security, this exchange is committed to maintaining the highest practicable standards for data protection in the prediction market industry.

Your Rights as a Polymarket User

Depending on your jurisdiction, you may have a range of rights with respect to the personal information that the platform holds about you. These may include the right to access a copy of your data, the right to request correction of inaccurate information, and the right to request deletion of your personal data subject to legal retention requirements. Users in certain regions, including those covered by the GDPR or CCPA, may also have the right to data portability, the right to object to certain processing activities, and the right to withdraw consent where processing is based on consent. To exercise any of these rights, please submit a request through the official support channels provided by the service. The platform will respond to verified requests within the timeframes required by applicable law. This exchange is committed to honoring your privacy rights and will not discriminate against you for exercising them.

Data Retention Policy

The platform retains personal information for as long as necessary to fulfill the purposes for which it was collected, including providing services, complying with legal obligations, resolving disputes, and enforcing agreements. Account information is generally retained for the duration of your active account and for a defined period after account closure, as required by applicable financial and anti-money laundering regulations. Transaction records and on-chain activity are, by nature of blockchain technology, permanently recorded on the public ledger and cannot be deleted. Analytical and usage data may be retained in aggregated, anonymized form for research and product development purposes indefinitely. When personal information is no longer required, the service employs secure deletion and anonymization processes to ensure it cannot be recovered or misused. Users may request information about the specific retention periods applicable to their data by contacting the platform's privacy team.

International Data Transfers

Polymarket operates globally, and your personal information may be transferred to and processed in countries other than your country of residence. These countries may have data protection laws that differ from those in your jurisdiction. When transferring data across borders, the platform implements appropriate safeguards to ensure that your information receives an adequate level of protection, including standard contractual clauses approved by relevant regulatory authorities. The service takes care to evaluate the legal and security environment of recipient jurisdictions and to apply supplementary measures where necessary to address any identified risks. By using this exchange, you acknowledge that your data may be processed in jurisdictions outside your home country as described in this policy. If you have questions about international data transfers affecting your information, you are encouraged to contact the platform's data protection team.

Children's Privacy

The platform is not intended for use by individuals under the age of 18, and this exchange does not knowingly collect personal information from minors. Access to prediction markets involves financial risk and requires legal capacity to enter into binding contracts, which minors generally do not possess. If the service becomes aware that it has inadvertently collected personal information from a person under 18, it will take prompt steps to delete that information from its records. Parents and guardians who believe that a minor has provided personal information to the platform are encouraged to contact the support team immediately. The exchange's age verification procedures during KYC are designed to prevent underage access, and users who attempt to circumvent these measures may have their accounts suspended. Protecting the privacy and safety of young people is a responsibility this service takes seriously.

Privacy Policy Updates

The platform reserves the right to update this privacy policy from time to time to reflect changes in its practices, technology, legal requirements, or other factors. When material changes are made, the service will provide prominent notice on its website and, where appropriate, notify registered users via email prior to the changes taking effect. The date of the most recent revision will always be displayed at the top of the policy document. Continued use of the platform after the effective date of any updated policy constitutes your acceptance of the revised terms. This exchange encourages users to review the privacy policy periodically to stay informed about how their information is being protected and used. If you disagree with any changes to this policy, you should discontinue your use of the service and may request deletion of your personal data as described in the user rights section.

Contact Information for Privacy Inquiries

If you have questions, concerns, or requests related to this privacy policy or the handling of your personal data, you are encouraged to reach out to the platform's dedicated privacy team through the official contact channels available on polymarket.com. The service aims to respond to all privacy-related inquiries within 30 days of receipt, or within any shorter timeframe required by applicable law. For users in jurisdictions with specific regulatory oversight, such as the European Union, there may be a designated Data Protection Officer whom you can contact directly. The platform takes privacy inquiries seriously and is committed to providing clear, transparent responses to all legitimate requests. You also have the right to lodge a complaint with a relevant data protection supervisory authority if you believe your rights have not been adequately addressed by this exchange. Contact details for relevant authorities are available through public regulatory body websites in your jurisdiction.

Your Consent to This Privacy Policy

By creating an account on Polymarket or otherwise using the services provided by this exchange, you acknowledge that you have read, understood, and agree to the data practices described in this privacy policy. Where consent is required as the legal basis for specific processing activities, the platform will obtain your explicit consent through clear, affirmative action before proceeding. You have the right to withdraw consent at any time, subject to the limitations imposed by ongoing legal obligations and contractual commitments. Withdrawal of consent does not affect the lawfulness of any processing that occurred prior to withdrawal. The service is designed to make consent management straightforward, and dedicated tools are provided within your account settings to manage your communication and data preferences. If you do not agree with this privacy policy, you should refrain from using the platform and contact the support team to arrange for the deletion of any data already collected.