Privacy Policy — How 5666b Handles Your Personal Data
This Privacy Policy sets out in clear, formal terms how 5666b collects, processes, stores, and protects the personal information of every player who registers or interacts with our Bangladesh-focused gaming platform. Your privacy is a fundamental part of the trust we work to earn every day.
What 5666b Stands For in Data Privacy
Before diving into the full legal detail, here is a plain-English summary of the six core principles that guide every data decision 5666b makes.
5666b collects only the personal data that is strictly necessary to operate your account, process payments, verify your identity, and keep the platform secure. We do not collect data speculatively or for purposes unrelated to your 5666b experience.
5666b does not sell, rent, or trade your personal information to third-party marketing organisations, data brokers, or advertising networks. Your data is used exclusively to deliver and improve the 5666b platform and to comply with our legal obligations.
All data in transit between your device and the 5666b platform is protected by 256-bit SSL/TLS encryption. Sensitive data at rest — including identity documents and payment references — is stored in encrypted form with access restricted to authorised personnel only.
You have clear rights over your personal data — including the right to access, correct, and in certain circumstances request deletion of your information. 5666b provides a straightforward process for exercising these rights, detailed in Section 9 of this policy.
5666b does not retain your personal data indefinitely. Retention periods are set according to the type of data and our legal obligations. Transaction and KYC records are kept for a minimum of five years for compliance purposes. All other data is reviewed and purged on a regular schedule.
In the unlikely event of a data breach that affects your personal information, 5666b will notify affected players directly via their registered email address within 72 hours of becoming aware of the incident. We will explain what data was affected, what steps we have taken, and what you should do.
01 Introduction
This Privacy Policy ("Policy") explains how 5666b ("the Platform", "we", "us", "our") collects, uses, discloses, and safeguards the personal information of individuals ("you", "your", "Player") who visit, register on, or interact with the 5666b platform, including its website, mobile interface, casino games, sports betting products, and promotional communications.
5666b is an online casino and sports betting platform built specifically for the Bangladesh market. All services are delivered in English. The Platform operates with a firm commitment to protecting the privacy of every player and handling personal data responsibly, transparently, and in accordance with internationally recognised data protection principles.
By creating a 5666b account, making a deposit, or otherwise using the Platform, you acknowledge that you have read and understood this Policy and that you consent to the collection and use of your personal data as described herein. This Policy should be read alongside the 5666b Terms and Conditions and Responsible Gaming Policy, both of which form part of your overall agreement with 5666b.
02 Data Controller
For the purposes of this Privacy Policy, the data controller responsible for your personal information is the 5666b platform operating entity. All data protection enquiries, access requests, and formal complaints should be directed to the 5666b Data Protection contact as follows:
- Email: [email protected] (mark the subject line "Data Protection Enquiry")
- WhatsApp: +880 1700-000000 (available 09:00–23:00 Bangladesh Standard Time, UTC+6)
- Website: https://5666b.io
All correspondence regarding data protection matters is handled in English. 5666b aims to acknowledge all data-related enquiries within 24 hours and to provide a full written response within 14 calendar days of receiving a valid, complete request.
03 Data We Collect
5666b collects personal data in several categories depending on how you interact with the Platform. The table below summarises the categories of data we collect and the specific data points within each category.
| Category | Data Points Collected |
|---|---|
| Identity Data | Full legal name, date of birth, gender, National Identity Card (NID) number, NID scan or photograph |
| Contact Data | Mobile phone number, email address, residential address (district, city, full address) |
| Account Data | Username, hashed password, account creation date, account status, login history, OTP verification logs |
| Financial Data | Mobile wallet numbers (bKash, Nagad, Rocket, Upay), card type and last four digits (Visa/Mastercard), transaction IDs, deposit and withdrawal history, account balance history |
| Gaming Data | Game session logs, bet history, win/loss records, RTP data, sports betting selections, in-play activity, bonus usage history |
| Technical Data | IP address, device type and model, operating system, browser type and version, screen resolution, time zone, session duration, referral URL |
| Communication Data | Support chat transcripts, email correspondence, WhatsApp messages with the support team, complaint records |
| Responsible Gaming Data | Deposit limit settings, self-exclusion records, session reminder configurations, reality check logs, problem gambling referral records |
5666b does not collect special category personal data (such as health records, racial or ethnic origin, political opinions, religious beliefs, or biometric data used for identification purposes) unless a player voluntarily discloses such information in the context of a responsible gaming or self-exclusion request, in which case it is handled with the highest level of confidentiality.
04 How We Collect Data
5666b collects personal data through the following channels:
- Direct Submission: Data you provide directly when registering an account, completing KYC verification, making deposits or withdrawals, contacting customer support, or responding to promotional communications.
- Automated Technical Collection: Data collected automatically when you access the Platform, including IP address, device identifiers, browser characteristics, and session activity logs collected via server logs and first-party analytics tools.
- Cookie and Tracking Technologies: Data collected through first-party cookies, session tokens, and similar technologies as described in Section 7 of this Policy.
- Third-Party Verification Providers: Data received from KYC and identity verification partners during the account verification process, such as NID database confirmation services used to verify the authenticity of identity documents submitted by players.
- Payment Processors: Transaction confirmation data received from mobile wallet operators (bKash, Nagad, Rocket, Upay) and card payment gateways (Visa, Mastercard) in connection with deposit and withdrawal processing.
- Game Providers: Session and outcome data received from certified third-party game providers (Evolution Gaming, Pragmatic Play, NetEnt, Microgaming, Spribe, Ezugi) in connection with games played on the Platform.
05 Purposes and Legal Basis
5666b processes your personal data for the purposes set out below. For each purpose, we identify the legal basis on which that processing activity rests.
| Purpose | Data Used | Legal Basis |
|---|---|---|
| Account registration and management | Identity, Contact, Account | Contractual necessity |
| KYC identity verification and age checking | Identity, Contact | Legal obligation; Contractual necessity |
| Processing deposits and withdrawals | Financial, Identity | Contractual necessity |
| Delivering casino games and sports betting | Account, Gaming, Technical | Contractual necessity |
| Anti-fraud and security monitoring | Technical, Financial, Account | Legitimate interest; Legal obligation |
| Anti-money laundering (AML) checks | Identity, Financial | Legal obligation |
| Responsible gaming tools and monitoring | Gaming, Responsible Gaming | Legal obligation; Legitimate interest |
| Customer support and complaint handling | Communication, Identity, Account | Contractual necessity; Legitimate interest |
| Platform analytics and performance improvement | Technical, Gaming | Legitimate interest |
| Promotional communications (opted-in players) | Contact, Account | Consent |
Where 5666b processes data on the basis of legitimate interest, we have assessed that the processing is necessary for the purposes described, that our interests are not overridden by your fundamental rights and freedoms, and that the processing is conducted with appropriate safeguards in place.
Where processing is based on consent — specifically, the sending of promotional communications — you may withdraw that consent at any time by updating your communication preferences in your account settings or by contacting [email protected]. Withdrawal of consent does not affect the lawfulness of processing that occurred prior to the withdrawal.
06 Data Sharing
5666b does not sell, rent, or trade your personal data to any third party. We share your personal information only in the following circumstances and only to the extent necessary for the stated purpose:
- Payment Processors: Your financial data is shared with mobile wallet operators (bKash, Nagad, Rocket, Upay) and card payment gateways solely for the purpose of processing your deposit and withdrawal transactions. These providers operate their own privacy policies and are independently responsible for data they hold on their platforms.
- KYC and Identity Verification Providers: Identity documents and personal details are shared with certified KYC verification partners to fulfil our age and identity verification obligations. All KYC partners are contractually bound to process data only for the stated verification purpose.
- Game Providers: Your account identifier and session data are shared with third-party game providers (Evolution Gaming, Pragmatic Play, NetEnt, Microgaming, Spribe, Ezugi) to enable delivery of the games you play. These providers are certified international gaming companies and are contractually bound to strict data use restrictions.
- IT and Security Service Providers: Technical data may be processed by our hosting, cybersecurity, and platform infrastructure partners who operate under strict data processing agreements and are not permitted to use your data for any purpose other than providing services to 5666b.
- Law Enforcement and Regulatory Authorities: Where required by applicable law, court order, or regulatory authority, 5666b will disclose personal data to the relevant authorities. 5666b will not voluntarily disclose player data to government bodies beyond what is legally mandated.
- Anti-Fraud and AML Networks: In cases of suspected fraud or money laundering, relevant account and transaction data may be shared with financial crime prevention services or other gambling operators as part of cross-industry fraud prevention initiatives.
07 Cookies and Tracking
The 5666b platform uses first-party cookies and similar session technologies to deliver a functional and secure user experience. The following types of cookies are used:
- Essential Session Cookies: These cookies are strictly necessary to maintain your login session, authenticate your account, and prevent session hijacking. They cannot be disabled without breaking core platform functionality. No personal data beyond your session token is stored in these cookies.
- Security Cookies: Used to detect and prevent fraudulent activity, including cross-site request forgery (CSRF) protection tokens and device fingerprint integrity checks. These cookies do not track your browsing activity outside of the 5666b platform.
- Analytics Cookies: First-party analytics cookies collect aggregated, anonymised data about how players navigate the platform — for example, which pages are visited most frequently, where users encounter errors, and how long sessions typically last. This data is used exclusively to improve platform performance and is not linked to individual player identities.
- Preference Cookies: Where you have configured display preferences within your account (such as language settings or notification preferences), preference cookies ensure those settings persist across sessions.
5666b does not use third-party advertising cookies, retargeting pixels, social media tracking scripts, or cross-site tracking technologies of any kind. The 5666b platform does not embed third-party advertising networks.
You may manage cookie preferences via your browser settings. Blocking essential session cookies will prevent you from logging in and using the platform. Blocking analytics or preference cookies will not affect core functionality but may degrade your experience slightly.
08 Data Retention
5666b retains personal data only for as long as is necessary to fulfil the purpose for which it was collected, or as required by law. The following retention periods apply:
| Data Category | Retention Period | Reason |
|---|---|---|
| KYC and identity documents | 5 years from account closure | AML compliance and legal obligation |
| Transaction and financial records | 5 years from transaction date | Financial audit and regulatory compliance |
| Gaming session and bet history | 5 years from session date | Dispute resolution; responsible gaming audit |
| Account registration data | Duration of account + 5 years | Contractual obligation; legal compliance |
| Support communications | 3 years from last contact | Dispute resolution; service improvement |
| Technical and device logs | 12 months from collection | Security monitoring; fraud prevention |
| Marketing preferences and consent records | Duration of consent + 3 years | Evidence of consent; legal compliance |
| Self-exclusion and responsible gaming records | Indefinite (player safety) | Preventing re-registration during exclusion period |
When personal data has reached the end of its retention period, it is securely deleted or anonymised so that it can no longer be linked to an individual. Anonymised aggregate data (for example, statistical reports on platform usage) may be retained indefinitely as it does not constitute personal data.
09 Your Rights
As a 5666b player, you have the following rights in relation to your personal data. To exercise any of these rights, contact [email protected] with the subject line "Data Rights Request" and your account username. We will verify your identity before processing the request.
Right of Access
You have the right to request a copy of all personal data 5666b holds about you, along with information about how it is used and shared. We will provide this within 14 days of a verified request.
Right to Rectification
You have the right to request correction of inaccurate or incomplete personal data. Account profile fields can be updated directly via your account settings; NID-linked fields require a formal request.
Right to Erasure
You may request deletion of your personal data where it is no longer necessary for the purpose it was collected. Note that data subject to legal retention obligations (KYC, financial records) cannot be erased before the mandatory retention period ends.
Right to Restriction
You may request that 5666b restricts processing of your data in certain circumstances — for example, while the accuracy of data you have contested is being verified.
Right to Data Portability
Where processing is based on your consent or contractual necessity and is carried out by automated means, you may request your data in a structured, commonly used, machine-readable format (CSV or JSON).
Right to Object
You may object at any time to processing of your data based on legitimate interest, including profiling for platform analytics purposes. You may also withdraw consent for marketing communications at any time via your account settings.
10 Data Security
5666b implements a layered security framework to protect personal data against unauthorised access, accidental loss, destruction, alteration, or disclosure. Our technical and organisational security measures include:
- Transport Encryption: All data transmitted between your device and the 5666b platform is encrypted using TLS 1.2 or higher with 256-bit AES encryption. HTTP connections are automatically redirected to HTTPS.
- Data-at-Rest Encryption: Sensitive personal data stored in our databases — including KYC documents and payment references — is encrypted at rest using AES-256.
- Access Controls: Access to personal data is restricted to 5666b personnel who require it to perform their specific job function. Access is granted on a least-privilege basis and is subject to regular review. All internal access to player data is logged and audited.
- Two-Factor Authentication: 5666b enforces OTP-based two-factor authentication for all player logins from unrecognised devices and for all internal staff access to systems containing personal data.
- Penetration Testing: The 5666b platform undergoes regular third-party security assessments to identify and remediate vulnerabilities before they can be exploited.
- Incident Response: 5666b maintains a documented data breach response procedure. In the event of a confirmed breach affecting personal data, affected players will be notified within 72 hours via their registered email address.
While 5666b takes every reasonable precaution to secure your data, no online platform can guarantee absolute security against all possible threats. You are responsible for maintaining the confidentiality of your own account credentials and for reporting any suspected unauthorised access to your account immediately.
11 Minors and Age Restriction
The 5666b platform is strictly for adults aged 21 and over. 5666b does not knowingly collect or process personal data from individuals under the age of 21. Age is verified at the point of KYC verification — all players must provide a valid Bangladesh National Identity Card (NID) confirming they are 21 or older before their first withdrawal is released.
If 5666b discovers or is notified that an account belongs to an individual under 21, the account will be closed immediately. Any data collected in connection with such an account will be deleted from active systems as quickly as is practicable, subject to any legal obligations to retain records of the incident.
12 Third-Party Services
The 5666b platform integrates with a number of third-party service providers to deliver its full range of gaming and payment products. While 5666b carefully selects these partners and holds them to strict contractual data protection standards, each third-party provider operates its own independent privacy policy that governs data they hold on their own systems.
The following categories of third-party services are integrated into the 5666b platform:
- Game Providers: Pragmatic Play, Evolution Gaming, NetEnt, Microgaming, Spribe, and Ezugi supply the casino games and live dealer products available on the Platform. These providers receive session identifiers and stake/outcome data necessary to run the games. They are certified international gaming companies subject to independent regulatory oversight and rigorous data protection standards.
- Payment Partners: bKash, Nagad, Rocket, and Upay are Bangladesh-based mobile financial service providers that process deposit and withdrawal transactions. Visa and Mastercard card transactions are handled by certified international payment gateways. All payment partners operate under their own regulatory frameworks and privacy policies.
- KYC Verification Services: 5666b uses certified identity verification partners to confirm the authenticity of NID documents submitted during account verification. These partners process identity data solely for the purpose of verification and are not authorised to retain or use it for any other purpose.
- Hosting and Infrastructure: The 5666b platform is hosted on secure cloud infrastructure. Our hosting partners process technical and operational data as data processors acting under 5666b's instruction and are bound by data processing agreements that prohibit independent use of player data.
5666b does not embed third-party social media plugins, advertising networks, or analytics platforms from external companies on its platform. All analytics data collected on the 5666b website is processed using first-party tools only, as described in Section 7 of this Policy.
Links to external platforms — if any appear in communications from 5666b — are provided for informational purposes only. 5666b is not responsible for the privacy practices or content of any external website. Players should review the privacy policy of any external platform before providing their personal information to it.
13 Changes to This Policy
5666b reserves the right to update or amend this Privacy Policy at any time to reflect changes in our data practices, legal obligations, or the services we offer. When we make material changes to this Policy, we will notify all registered players via the email address associated with their account at least 14 days before the changes take effect.
The updated Policy will be published at https://5666b.io/privacy-policy with a revised "Last Reviewed" date displayed at the top of the document. Minor clarifications or non-substantive edits may be made without advance notice, though the Last Reviewed date will always reflect the most recent update.
Your continued use of the 5666b platform after a revised Policy has come into effect constitutes your acceptance of the updated terms. If you do not agree with any material change, you should stop using the platform and may request account closure by contacting [email protected] before the revised Policy takes effect.
14 Contact and Complaints
If you have any questions about this Privacy Policy, wish to exercise any of your data rights, or want to raise a concern about how 5666b has handled your personal information, please contact our Data Protection team using the details below.
- Email: [email protected] — use the subject line "Privacy Policy Enquiry" or "Data Rights Request" as appropriate
- WhatsApp: +880 1700-000000 — available 09:00–23:00 Bangladesh Standard Time (UTC+6), seven days a week
- Response Time: All privacy-related enquiries are acknowledged within 24 hours and receive a full response within 14 calendar days
5666b takes all privacy complaints seriously and is committed to resolving them fairly, transparently, and in a timely manner. If you submit a formal complaint and are not satisfied with the outcome, you may escalate the matter through any applicable legal channels available to you in Bangladesh.
All communications with the 5666b data protection team are handled in English. Please ensure your request is written clearly and includes your registered account username so that we can locate and verify your account promptly.
- Effective: 1 January 2026
- Last Reviewed: 1 January 2026
- Version: 1.0
- Language: English
- Market: Bangladesh
- TLS 1.2+ in transit
- AES-256 at rest
- OTP two-factor auth
- Regular pen testing
- 72hr breach notification
- R1 — Access
- R2 — Rectification
- R3 — Erasure
- R4 — Restriction
- R5 — Portability
- R6 — Object
To exercise your rights or raise a privacy concern, reach our Data Protection team directly.
- [email protected]
- +880 1700-000000
- 09:00–23:00 BST Daily
This Privacy Policy works alongside the following documents. We recommend reading all three.
- KYC docs: 5 years
- Transactions: 5 years
- Support logs: 3 years
- Device logs: 12 months
- Self-exclusion: Indefinite
Ready to Play at 5666b — Bangladesh's Premium Casino?
Now that you understand exactly how 5666b handles your personal data, you can play with confidence. Explore our full casino, place cricket bets, spin the slots, or review our other platform policies before getting started.