This Privacy Policy explains how tk4 collects, uses, stores, and protects your personal information when you access and use our online casino and sports betting platform. Your privacy is important to us — please read this document carefully.
A plain-language summary of our core privacy commitments. The full legal text below is the authoritative reference and takes precedence in all cases.
tk4 collects personal data strictly necessary for account registration, identity verification, payment processing, customer support, and regulatory compliance. We do not harvest data for advertising profiling.
All data transmitted to and from the tk4 platform is protected by SSL/TLS encryption. Stored data is secured using industry-standard controls. Access to personal data is restricted to authorised personnel only.
tk4 will never sell, rent, or trade your personal information to third parties for commercial purposes. Data sharing is limited to trusted partners who support our operations, bound by strict confidentiality obligations.
You have the right to access, correct, and request deletion of your personal data at any time by contacting our support team. Account closure requests are processed promptly, subject to our legal retention obligations.
tk4 uses essential cookies to maintain your session and remember preferences. We do not deploy third-party advertising cookies. You can manage cookie settings through your browser at any time.
When this Privacy Policy is updated in a material way, tk4 will notify registered players via email or an in-platform notification. The effective date at the top of this page is updated with each revision.
Welcome to the tk4 Privacy Policy. tk4 ("we", "us", "our", "the Platform") operates the online casino and sports betting platform accessible at https://tk4.bio. We are committed to safeguarding the privacy and personal data of every individual who visits, registers with, or transacts on the tk4 platform.
This Privacy Policy ("Policy") describes what personal information we collect from you, how and why we use it, with whom we share it, how long we keep it, and what rights you have in relation to it. It applies to all users of the tk4 website and associated services, regardless of the device or method used to access them.
This Policy should be read alongside the tk4 Terms & Conditions and Responsible Gaming Policy, both of which are incorporated by reference. By creating an account or otherwise using the tk4 platform, you acknowledge that you have read and understood this Policy.
For the purposes of this Policy, tk4 acts as the data controller in respect of the personal information you provide when registering and using the platform. As data controller, tk4 determines the purposes and means of processing your personal data in connection with the delivery of our gaming and betting services.
All queries, requests, and complaints relating to the use of your personal data by tk4 should be directed to our Data Support team using the contact details set out in Section 14 of this Policy.
tk4 collects the following categories of personal data, depending on your level of engagement with the platform:
tk4 collects personal data through the following means:
The personal data tk4 collects is used for the following purposes:
| Purpose | Data Categories Used |
|---|---|
| Creating and managing your player account | Registration and identity data |
| Verifying your age and identity (KYC) | Identity verification data, registration data |
| Processing deposits and withdrawals | Financial and transaction data |
| Delivering and improving platform services | Technical data, transaction data |
| Fraud detection and security monitoring | Technical data, transaction data, registration data |
| Responsible gaming monitoring and intervention | Transaction data, session data, communication data |
| Customer support and dispute resolution | Communication data, registration data, transaction data |
| Regulatory and legal compliance | All categories as required by applicable law |
| Sending service-related notifications | Registration data (email, phone number) |
tk4 does not use your personal data for behavioural advertising, third-party marketing, or profiling for commercial sale to external organisations.
tk4 processes your personal data on the following legal grounds, depending on the specific purpose:
tk4 does not sell your personal data. We share personal data only in the following limited circumstances:
We engage trusted third-party service providers who process data on our behalf under binding data processing agreements. These include payment processors (bKash, Nagad, Rocket, Upay), game software providers (Pragmatic Play, Evolution Gaming, NetEnt, Microgaming, Spribe, Ezugi), identity verification services, and IT infrastructure providers. These partners may access your data only to the extent necessary to perform their specific function.
tk4 may disclose personal data to competent authorities, law enforcement agencies, or regulatory bodies where we are required to do so by applicable law, court order, or lawful request. We will notify you of any such disclosure where permitted by law to do so.
In the event that tk4 undergoes a merger, acquisition, or transfer of assets, your personal data may be transferred to the successor entity as part of that transaction. You will be notified of any such transfer in advance and provided with options available to you under applicable law.
Where there is a credible risk of fraud, money laundering, or harm to the safety of individuals, tk4 may share relevant data with other parties, including other gaming operators and industry fraud-prevention bodies, to protect the integrity of our platform and the wider gaming environment.
tk4 retains personal data for as long as necessary to fulfil the purposes described in this Policy, unless a longer retention period is required or permitted by applicable law. The following general retention periods apply:
| Data Category | Retention Period |
|---|---|
| Account registration data | Duration of account plus 5 years after closure |
| KYC / identity verification documents | Duration of account plus 5 years after closure |
| Transaction and financial records | Minimum 7 years (regulatory requirement) |
| Customer support communications | 3 years from last interaction |
| Technical and session logs | 12 months on a rolling basis |
| Self-exclusion records | Permanently, to prevent re-registration during exclusion |
When data is no longer required, tk4 will securely delete or anonymise it in accordance with our internal data management procedures.
tk4 implements a comprehensive set of technical and organisational measures to protect your personal data against unauthorised access, accidental loss, alteration, disclosure, or destruction. Our security measures include:
Despite these measures, no method of transmission over the internet or electronic storage is completely secure. If you have reason to believe that your tk4 account has been compromised, please contact us immediately at .
You also play an important role in keeping your account secure. Never share your login credentials with anyone, use a strong and unique password, and log out of your account when using shared devices.
tk4 uses cookies and similar technologies to maintain the functionality of the platform and improve your user experience. A cookie is a small text file stored on your device by your web browser when you visit a website.
| Cookie Type | Purpose | Required? |
|---|---|---|
| Session cookies | Maintain your logged-in session while you browse the platform | Yes — essential |
| Preference cookies | Remember language, display settings, and other personalisation choices | Yes — essential |
| Security cookies | Detect and prevent fraudulent account access and CSRF attacks | Yes — essential |
| Analytics cookies | Aggregate platform usage statistics to improve service quality (no personal identification) | No — optional |
You can control and delete cookies through your browser settings. Please note that disabling essential cookies may impair your ability to log in and use core features of the tk4 platform. tk4 does not deploy third-party advertising cookies or share cookie data with advertising networks.
As a tk4 player, you have the following rights in respect of your personal data. To exercise any of these rights, please submit a written request to . We will acknowledge your request within 5 business days and provide a substantive response within 30 days.
Request a copy of the personal data tk4 holds about you, along with information on how it is used.
Request correction of inaccurate or incomplete personal data held in your account.
Request deletion of your personal data where it is no longer necessary, subject to our legal retention obligations.
Request that tk4 limits the processing of your data in certain circumstances while a query is under review.
Receive your personal data in a structured, commonly used format for transfer to another service provider where technically feasible.
Object to processing of your data based on legitimate interests, including the right to opt out of non-essential communications.
The tk4 platform is intended exclusively for adults aged 18 years and over. tk4 does not knowingly collect personal data from individuals under the age of 18. Age verification is conducted as part of the registration and KYC process.
If tk4 discovers or has reason to believe that an account is held by a person under the age of 18, that account will be immediately suspended, all real-money activity associated with the account will be voided, and any personal data collected will be securely deleted to the extent required by law.
tk4 reserves the right to update or modify this Privacy Policy at any time to reflect changes in our data practices, applicable law, or platform features. The updated Policy will be published at https://tk4.bio/privacy-policy with a revised effective date at the top of the document.
Where changes are material — meaning they significantly affect your rights or the way we handle your personal data — tk4 will provide advance notice to registered players via email or a prominent in-platform notification at least 14 days before the changes take effect. Your continued use of the tk4 platform after the effective date of a revised Policy constitutes your acceptance of the changes.
We encourage you to review this Policy periodically to stay informed of how tk4 protects your information.
If you have any questions, concerns, or requests regarding this Privacy Policy or the way tk4 handles your personal data, please contact our Data Support team. All communications must be submitted in English and should include your registered username to allow us to identify your account.
Data Support — tk4
Email: — Available 24/7 in English and Bengali.
For data deletion requests, access requests, or concerns about data security incidents, please mark your subject line clearly (e.g., "Data Access Request" or "Data Deletion Request") to ensure your message is routed to the correct team without delay.
We are committed to keeping your data secure and your experience transparent. Explore our platform with confidence, or review our other policies to understand your full rights as a tk4 player.
18+ only. Please gamble responsibly. This Privacy Policy was last updated in January 2026.