ckk4 Privacy Policy
ckk4 is committed to protecting the privacy and personal data of every player on the platform. This Privacy Policy explains in plain, formal English exactly what information ckk4 collects, why it is collected, how it is stored and protected, who it may be shared with, and the rights available to you as a player in Bangladesh.
How ckk4 Approaches Your Privacy
Before reading the full policy, these six cards summarise the principles that guide every data decision ckk4 makes. The complete legal text follows below.
Minimum Data Collection
ckk4 collects only the personal information that is strictly necessary to operate the Platform, verify player identity, process transactions, and comply with applicable legal obligations. No data is collected speculatively or without a clear and legitimate purpose.
Bank-Grade Security
All data transmitted between your device and the ckk4 Platform is protected using 256-bit SSL encryption. Sensitive data held in storage — including payment details and identity documents — is encrypted at rest and access-controlled so that only authorised personnel can view it.
No Data Sales
ckk4 does not sell, rent, lease, or trade your personal data to any third party under any circumstances. Data sharing with external parties is strictly limited to what is needed to operate the Platform — for example, payment processors verifying a bKash or Nagad transaction.
Your Rights Are Real
Every ckk4 player has the right to access, correct, or request deletion of their personal data. You may also object to certain types of processing or request that your data be provided to you in a portable format. ckk4 will respond to all valid data requests within thirty (30) days.
Defined Retention Periods
ckk4 retains personal data only for as long as it is needed for the purpose it was collected, or as required by applicable law. Account data is typically retained for five years after account closure to satisfy anti-money laundering obligations, after which it is securely deleted.
Transparent Updates
Whenever ckk4 makes a material change to this Privacy Policy, registered players will be notified by email or through an on-Platform notification before the change takes effect. The updated policy will always carry a clear effective date at the top of this page.
This Privacy Policy ("Policy") describes how ckk4 ("the Platform", "we", "us", "our") collects, uses, stores, discloses and protects the personal information of individuals ("you", "the User", "Player") who access or use the services available at https://ckk4.bio. This Policy should be read alongside the ckk4 Terms & Conditions. By registering an Account or using the Platform, you confirm that you have read and understood this Policy and consent to the processing of your personal data as described herein.
1 Who We Are
ckk4 is an online casino and sports betting platform operating at https://ckk4.bio and serving players across Bangladesh, including major cities such as Dhaka, Chittagong, Sylhet, Rajshahi, Khulna, Barisal, Rangpur and Mymensingh. For the purposes of this Policy, ckk4 is the data controller responsible for personal information collected through the Platform.
If you have any questions about how ckk4 handles your personal data, you may contact the Data Support team at any time using the contact details provided in Section 15 of this Policy.
2 Data We Collect
ckk4 collects the following categories of personal information from players:
2.1 Identity and Contact Information
- Full legal name as it appears on your national identification card (NID) or passport
- Date of birth (used to verify that you are aged 21 or above)
- Residential address within Bangladesh
- Email address and/or mobile phone number
- Copies of identity documents submitted during KYC verification (NID, passport, driving licence)
- Proof of address documentation where requested
2.2 Financial Information
- Payment method details (bKash account number, Nagad number, Rocket number, Upay number, bank account details, card numbers — stored in masked or tokenised form only)
- Transaction history including deposits, withdrawals, and bonus credits
- Proof of payment method documentation submitted for KYC purposes
2.3 Account and Activity Data
- Username and Account ID
- Login timestamps and session durations
- Betting history, game history, and wagering records
- Bonus claims, wagering progress, and promotional participation records
- Responsible gaming settings, including deposit limits and self-exclusion status
- Communications with the ckk4 support team (live chat logs, emails, WhatsApp messages)
2.4 Technical and Device Data
- IP address and approximate geolocation derived from IP
- Device type, operating system, and browser type
- Cookie identifiers and session tokens (see Section 7)
- Pages visited, clicks, scroll depth and time spent on Platform pages
- Referral source (the URL or campaign that brought you to the Platform)
3 How We Collect Your Data
ckk4 collects personal data through the following means:
- Direct submission: Information you provide when registering an Account, completing KYC verification, making a deposit or withdrawal, contacting support, or participating in a promotion.
- Automated collection: Technical data collected automatically as you browse the Platform, including via cookies, server logs, and analytics tools (see Section 7).
- Third-party verification: Identity and address information returned by third-party KYC verification providers when ckk4 submits your details for verification against official records.
- Payment processors: Transaction confirmation data returned by bKash, Nagad, Rocket, Upay and other payment partners when processing deposits and withdrawals.
- Fraud and risk tools: Device fingerprint and behavioural signals provided by third-party fraud prevention services that ckk4 uses to protect the integrity of the Platform.
4 Why We Use Your Data
The following table sets out the purposes for which ckk4 uses your personal data and the corresponding legal basis for each purpose:
| Purpose | Data Used | Legal Basis |
|---|---|---|
| Account registration and management | Identity, contact, account data | Contract performance |
| Age and identity verification (KYC) | Identity documents, date of birth | Legal obligation |
| Processing deposits and withdrawals | Financial, identity data | Contract performance |
| Fraud prevention and security | Technical, financial, activity data | Legitimate interest |
| Anti-money laundering (AML) compliance | Identity, financial, transaction data | Legal obligation |
| Responsible gaming monitoring | Activity, account data | Legal obligation / Legitimate interest |
| Customer support communications | Identity, contact, communication data | Contract performance |
| Promotional and bonus administration | Account, activity data | Contract performance |
| Marketing communications (where consented) | Contact, activity data | Consent |
| Platform analytics and improvement | Technical, activity data | Legitimate interest |
5 Legal Bases for Processing
ckk4 processes your personal data under one or more of the following legal bases:
- Contract performance: Processing is necessary to fulfil the contractual relationship between you and ckk4 established when you create an Account and agree to the Terms & Conditions. Without this processing, ckk4 cannot provide the services you have requested.
- Legal obligation: Certain processing is required to comply with applicable laws, including anti-money laundering (AML) legislation, Know Your Customer (KYC) obligations, and age verification requirements.
- Legitimate interest: ckk4 has a legitimate interest in preventing fraud, ensuring Platform security, improving the user experience, and detecting prohibited conduct. ckk4 has assessed that these interests do not override your fundamental data protection rights.
- Consent: Where processing is based on your consent — primarily for marketing communications — you may withdraw that consent at any time without affecting the lawfulness of processing that occurred before withdrawal. To withdraw consent, contact ckk4 support or update your Account notification preferences.
6 Sharing Your Data
ckk4 does not sell, rent or trade your personal data. Data is shared with third parties only where strictly necessary and only under the following circumstances:
6.1 Payment Processors
Transaction data and the minimum necessary identity information is shared with bKash, Nagad, Rocket, Upay, Visa, Mastercard and other payment partners solely to process deposits and withdrawals. These partners are bound by their own privacy and security obligations and may not use your data for any other purpose.
6.2 Identity Verification Providers
During KYC verification, ckk4 may submit your identity documents and personal details to third-party verification service providers for matching against official identity databases. These providers act as data processors under contract with ckk4 and process data only on ckk4's instructions.
6.3 Fraud Prevention and Security
ckk4 uses third-party fraud detection and device fingerprinting services to protect the Platform and its players. Limited technical data (IP address, device identifiers) is shared with these providers for the purpose of identifying suspicious activity.
6.4 Legal and Regulatory Authorities
ckk4 may disclose personal data to law enforcement agencies, courts or regulatory bodies where required to do so by applicable law, court order or regulatory instruction. ckk4 will only make such disclosures to the minimum extent required by the relevant legal obligation.
6.5 Business Transfers
In the event that ckk4 undergoes a merger, acquisition, or sale of all or part of its business assets, player data may be transferred to the successor entity as part of that transaction. Players will be notified of any such transfer and the successor's privacy practices before the transfer takes effect.
7 Cookies & Tracking Technologies
7.1 What Are Cookies
Cookies are small text files placed on your device when you visit the ckk4 Platform. They allow the Platform to recognise your device on return visits, remember your preferences, keep you logged in during a session, and understand how you interact with the site.
7.2 Types of Cookies Used
- Strictly necessary cookies: Required for the Platform to function. These include session authentication tokens, CSRF protection tokens, and load-balancing cookies. These cannot be disabled.
- Functional cookies: Used to remember your preferences such as language settings, display options, and responsible gaming tools you have activated.
- Analytics cookies: Used to collect aggregated, anonymised data about how players navigate the Platform. This data is used to improve page performance, fix usability issues, and understand which features are most valued by players.
- Marketing cookies: Used only where you have given explicit consent. These cookies track your visits to help ckk4 deliver promotions and offers that are relevant to your activity on the Platform.
7.3 Managing Cookies
You may manage or disable non-essential cookies through your browser settings at any time. Disabling strictly necessary cookies will prevent the Platform from functioning correctly. Disabling marketing cookies will not affect your ability to use the Platform but will mean that any promotional communications you receive may be less relevant to your preferences.
8 Data Security
ckk4 implements a comprehensive set of technical and organisational security measures to protect your personal data against unauthorised access, accidental loss, destruction or disclosure:
- 256-bit SSL/TLS encryption on all data in transit between your device and the ckk4 servers
- Encryption at rest for sensitive data categories including identity documents and financial records
- Role-based access controls ensuring that only authorised ckk4 personnel with a genuine business need can access player data
- Multi-factor authentication for all internal systems that hold personal data
- Regular penetration testing and security audits conducted by independent third-party security specialists
- Incident response procedures to detect, contain, and notify affected parties in the event of a data breach, in accordance with applicable notification obligations
Notwithstanding these measures, no system is completely immune to security risks. ckk4 strongly encourages players to use a strong, unique password for their Account and to contact support immediately if they suspect any unauthorised access.
9 Data Retention Periods
ckk4 retains personal data for the minimum period necessary for the purpose for which it was collected, subject to the following retention schedule:
| Data Category | Retention Period | Reason |
|---|---|---|
| Account identity and KYC documents | 5 years after account closure | AML and legal compliance |
| Transaction and financial records | 5 years after account closure | AML, tax, and audit obligations |
| Betting and game history | 3 years after account closure | Dispute resolution and compliance |
| Support communications | 2 years after last interaction | Quality assurance and dispute resolution |
| Marketing preferences and consent records | Until consent is withdrawn + 1 year | Proof of consent |
| Technical and analytics data | 13 months from collection | Platform analytics cycle |
| Session cookies | Until browser session ends | Session functionality only |
At the end of the applicable retention period, personal data is securely deleted or anonymised so that it can no longer be associated with an individual player.
10 Your Data Rights
As a player on the ckk4 Platform, you have the following rights regarding your personal data. To exercise any of these rights, contact the ckk4 Data Support team using the details in Section 15. ckk4 will respond to all valid requests within thirty (30) calendar days.
Right of Access
You have the right to request a copy of all personal data ckk4 holds about you. ckk4 will provide this in a clear, structured format within 30 days of receiving your verified request.
Right to Rectification
If any personal data ckk4 holds about you is inaccurate or incomplete, you have the right to request that it be corrected. You may also update certain data directly through your Account settings.
Right to Erasure
You may request deletion of your personal data where it is no longer necessary for the purpose it was collected, where you withdraw consent, or where processing was unlawful. Erasure requests are subject to legal retention obligations.
Right to Restriction
You may request that ckk4 restrict the processing of your data in certain circumstances — for example, while the accuracy of the data is being contested or while an objection is being assessed.
Right to Data Portability
Where processing is based on consent or contract and carried out by automated means, you have the right to receive your personal data in a structured, machine-readable format and to transmit it to another service provider.
Right to Object
You have the right to object to processing based on legitimate interest, including profiling. You may also object to direct marketing at any time, after which ckk4 will cease processing your data for that purpose immediately.
11 Children's Privacy
The ckk4 Platform is strictly intended for adults aged 21 years and above. ckk4 does not knowingly collect personal data from anyone under the age of 21. If ckk4 becomes aware that personal data has been collected from a person under 21, that data will be deleted immediately and the associated Account will be permanently closed.
If you are a parent or guardian and believe that a minor in your care has accessed or registered on the ckk4 Platform, please contact the support team immediately using the contact details in Section 15. ckk4 takes underage access extremely seriously and operates strict age verification procedures at the point of registration.
12 Third-Party Links
The ckk4 Platform may contain references to third-party services — for example, payment provider platforms such as bKash or Nagad — for informational purposes. ckk4 does not control those third-party websites or their privacy practices and is not responsible for the content or data-handling policies of any external site.
When you interact with a third-party payment platform as part of a deposit or withdrawal, you are subject to that platform's own terms and privacy policy. ckk4 recommends that you review the privacy policies of any third-party service you use in connection with your ckk4 Account.
13 Marketing Communications
13.1 Opt-In Marketing
ckk4 will send you promotional communications — including bonus offers, tournament announcements, seasonal promotions linked to events such as Pohela Boishakh, Eid, or BPL cricket season — only where you have given your explicit consent to receive such communications at the time of registration or through your Account settings.
13.2 Withdrawing Consent
You may withdraw your consent to receive marketing communications at any time by:
- Updating your notification preferences in your Account settings;
- Clicking the unsubscribe link included in any marketing email; or
- Contacting the ckk4 support team directly.
Withdrawal of marketing consent will be processed promptly. Please allow up to five (5) business days for all marketing channels to be updated. Withdrawing marketing consent does not affect your ability to use the Platform or receive transactional communications (such as deposit confirmations or security alerts).
13.3 Transactional Communications
Certain communications are not marketing and cannot be opted out of while your Account is active. These include deposit and withdrawal confirmations, security alerts, KYC verification requests, Terms & Conditions update notices, and responsible gaming notifications. These communications are necessary for the operation of your Account.
14 Changes to This Privacy Policy
ckk4 reviews this Privacy Policy regularly and may update it to reflect changes in our data processing practices, legal requirements, or Platform functionality. The effective date at the top of this page will always reflect the date of the most recent revision.
Where a change is material — meaning it significantly affects the way ckk4 processes your personal data or the rights available to you — ckk4 will notify registered players by email or through a prominent on-Platform notification at least fourteen (14) days before the change takes effect. Your continued use of the Platform after the effective date of any revision constitutes acceptance of the updated Policy.
If you do not agree to any revised Privacy Policy, you should cease using the Platform and may request the closure of your Account and a withdrawal of your available balance in accordance with the withdrawal process described in the Terms & Conditions.
15 Contact Us
If you have any questions about this Privacy Policy, wish to exercise any of your data rights, or have a concern about how ckk4 has handled your personal information, please contact the ckk4 Data Support team through any of the following channels:
- Email: [email protected] (plain text — not a clickable link)
- Live Chat: Available 24 hours a day, 7 days a week through the Platform
- WhatsApp Support: Available 24/7 in Bangladesh Standard Time (BST, UTC+6)
ckk4 will acknowledge all data rights requests within five (5) business days and will provide a substantive response within thirty (30) calendar days. In complex cases where additional time is required, ckk4 will inform you of the delay and the expected resolution date before the initial 30-day period expires.
Your Privacy Is Protected — Now Play With Confidence
Now that you understand how ckk4 protects your personal data, explore the full game catalogue, read the FAQ for common questions, or visit the Responsible Gaming page for player protection tools. All players must be 21 or older.