Your personal information at big small is a trust placed in our hands. On this page, you'll find everything you need to know — what data is collected, why it's used, who it may be shared with, and what your rights are.
Before diving into the details, take a look at these cards — they cover the key points about your data in a simple, easy-to-understand way.
Big small only collects the information strictly needed for registration, payments, and service management — nothing more. No address, no occupation, no relationship details.
Your personal and financial information is protected with 256-bit SSL encryption. Data storage is also encrypted, meaning no one can read it directly.
Big Small does not sell your personal data to any advertiser or third party. Data is only shared to a limited extent for payment processing and legal compliance purposes.
You can find out exactly what information big small holds about you at any time. You may request corrections or deletion — the support team will process your request within 48 hours.
Big Small only uses cookies that are essential for session management and platform functionality. Third-party tracking cookies are not used. You can manage cookie preferences through your browser settings.
Big Small does not collect any information from individuals under the age of 18. If age cannot be verified during the KYC process, the account will be cancelled and all associated data will be deleted.
This Privacy Policy Big Small Applies to the use of the (bigsmall.best) website and related services. By using the platform, you are deemed to have accepted this policy.
Big Small Places your privacy above all else. We believe data protection is not just a legal obligation — it is an ethical responsibility to our users. In this privacy policy, we honestly explain what information is collected, why it is collected, and how it is used and kept secure.
Betting users in Bangladesh are often concerned about their mobile numbers, ID details, and transaction records. big small takes these concerns seriously — which is why this policy is written in plain language, not complex legal jargon.
If you have a question that isn't answered in this document, reach out directly to the support team — they're available to help in Bengali.
The following information is required when opening an account at big small:
Additional information may be required for KYC verification on your first withdrawal or for security purposes:
Certain information is recorded automatically while you use the platform:
Big small does not track your location, record calls, or collect data from your personal social media accounts.
| Data Type | Purpose | Mandatory |
|---|---|---|
| Name & Mobile Number | Account Creation & Communication | Yes |
| Date of Birth | Age Verification (18+) | Yes |
| Email Address | Security Notifications & Recovery | Optional |
| NID / Passport | KYC Verification | On Withdrawal |
| Payment Information | Deposit & Withdrawal Process | Yes |
| Betting Logs | Dispute Resolution & Auditing | Automatic |
| Device & IP Information | Security & Fraud Prevention | Automatic |
Big small uses the data it collects for specific purposes only — nothing beyond that. The primary uses are:
Your name and mobile number are used for login verification, account recovery, and sending security notifications.
Payment channel details are used to process deposits and withdrawals. Financial transaction logs are retained for auditing purposes.
Device and IP data are analyzed to detect multiple accounts, bonus abuse, or suspicious activity.
We analyse which features are most used in order to improve the platform. No personally identifiable information is used in this analysis.
Records are maintained as required to comply with anti-money laundering regulations and applicable laws.
Big Small does not sell your data to anyone — that is a core principle. However, data may be shared in the following limited circumstances:
Transaction data is shared with payment services such as bKash, Nagad, Rocket, and Upay solely to process those transactions. Each of these providers has its own privacy policy, and your data is protected with them as well.
Information may be disclosed in response to a court order or a valid written request from law enforcement. In such cases, big small will always endeavor to notify the relevant user — where legally permitted.
Minimal necessary data may be shared with technology partners such as game software providers or cloud service providers. All such partners are bound by strict confidentiality agreements.
Big Small never sells or shares your information with advertisers, data brokers, or third-party marketing companies.
Big Small employs multiple layers of security to protect your data. A summary of our technical security measures is outlined below:
Beyond technical safeguards, big small staff are trained under strict data privacy standards. Only those who require access for their role can view user data, and every access is logged.
Big small uses cookies on its website — but only to ensure the platform functions properly. No third-party advertising or tracking cookies are used.
| Cookie Type | Purpose | Retention Period |
|---|---|---|
| Session Cookies | Remembering login status | Until the browser is closed |
| Preference Cookies | Language preference and interface settings | 30 Days |
| Security Cookies | CSRF Protection & Account Verification | Until End of Session |
| Analytics Cookies | Page Performance Monitoring (Anonymous) | 3 Months |
You can disable cookies in your browser settings, though doing so may affect certain features — particularly login and session management.
Big small does not retain your data indefinitely. A defined retention policy is in place for each type of information:
Once the retention period expires, data is securely deleted or fully anonymised.
Big small believes you should have full control over your own data. The following rights are granted to you:
You can find out at any time what information Big Small holds about you. Submit a request to Support and it will be delivered within 48 hours.
You may request corrections to inaccurate or outdated information. Some details can be updated directly in your account settings.
After closing your account, you may request deletion of your data, subject to any applicable legal retention obligations.
You may object to the use of your data for specific purposes — such as opting out of marketing communications.
You may request a copy of the data we hold about you in a structured format (CSV or JSON).
If you have any objection to any aspect of how your data is processed, contact the support team — they will review the matter.
Big small strictly prevents anyone under the age of 18 from using the platform. To this end:
If you believe a minor is using Big Small, please notify us immediately at support@bigsmall.best.
A note for parents and guardians — please ensure your children cannot access Big Small using your bKash or Nagad account.
For any privacy-related questions, requests, or concerns, please get in touch with us:
When requesting data deletion or correction, please include your registered mobile number — this helps us verify your identity.
This Privacy Policy was last January 2026updated. Any future changes will be published on this page, and registered users will be notified via SMS for significant updates.
Many people in Bangladesh are understandably cautious about sharing personal information online — especially sensitive details like National ID numbers or mobile numbers. When a website asks for this kind of information, it's natural to wonder where it goes, who can see it, and whether it's truly safe. Big Small's Privacy Policy is designed to answer all of these questions directly.
A bit more detail on KYC verification is worth sharing. Many users ask — why do I need to provide a photo of my ID? There are two key reasons. First, betting platforms are legally required to verify a user's age and identity. Second, it protects you personally — it prevents anyone from opening a fraudulent account in your name. big small uses this information solely for verification and stores it securely.
Many users are also concerned about the privacy of their mobile number. Big Small does not share your mobile number with any third party — not even for promotional SMS — unless you have given explicit consent. Your mobile number is only used when necessary, such as for support or security notifications.
A brief explanation on transaction data retention: under Bangladesh's financial regulations, all financial institutions are required to retain transaction records for a specified period — this is a legal obligation, not just a Big Small policy. Such records may only be accessed for dispute resolution or legal investigation purposes.
Regarding betting logs and gaming history — Big Small keeps a record of every bet, primarily for dispute resolution. For example, if you believe a bet outcome was incorrectly settled, the log allows us to verify the accurate result. These records are maintained in your interest.
Some users have questions about the collection of device and IP information. big small uses this data to prevent the creation of multiple accounts and bonus abuse. It's a necessary measure to protect the entire community — because if bonus abuse goes unchecked, offers have to be reduced for everyone.
If you ever choose to close your account, the period for which big small retains your data is defined in advance. Once legal obligations are fulfilled, your data is securely deleted. You may also submit a deletion request at any time — the support team will carry out the process.
A final note — privacy is an ongoing commitment, not a one-time declaration. Big Small We commit that any future changes to this policy will be communicated transparently, and no changes will be made that compromise your interests. Your trust is our most valuable asset.
We are committed to protecting your data. Register securely and enjoy the trusted betting experience at big small.