Privacy Policy

399btc Privacy Policy — Your Information Is Completely Secure

399btc takes the privacy of your personal information seriously. On this page, we clearly explain what information we collect, how it is used, and how it is kept secure.

Last Updated: January 2026 SSL Encrypted Your Data Is Never Sold GDPR-Compliant

How We Use Your We Protect Your Privacy

The 399btc Privacy Policy is built on six core principles.

Minimal Data Collection
399btc only collects information that is strictly necessary to operate its services. We never ask for unnecessary personal details.
Advanced Encryption
All data is protected by SSL/TLS encryption technology. Industry-standard security is ensured at every stage, from data transfer to storage.
No Data Shared with Third Parties
Your personal information is never sold or exchanged with third parties. No party other than our payment provider has access to your data.
Your Control
You have the full right to view, correct, or delete your information. You may submit a request through our support team at any time.
Transparent Cookie Policy
399btc uses cookies solely to improve the quality of our service. You have full control over which cookies are active.
Defined Retention Periods
Your data is securely deleted once the required retention period ends. No data is held beyond what is legally required.
1 Introduction & Definitions

399btc (https://399btc.win) is an online gaming and betting platform serving users in Bangladesh. This Privacy Policy ("Policy") explains to you ("User" or "Member") how 399btc collects, manages, and protects your personal information.

By using the 399btc website or app, you are considered to have accepted this Privacy Policy. Please read it carefully. If you do not agree with this Policy, please refrain from using our services.

Key terms used in this policy: "Personal Information" refers to any data that can identify you, directly or indirectly; "Processing" covers all activities involving the collection, storage, use, or deletion of data; "Third Party" means any person or organization other than 399btc.

This Privacy Policy has been written in Bengali so that every Bangladeshi member can easily understand it. If you have any questions, please ask our support team.

2 What Information We Collect

399btc collects your information in several ways. Full details are provided below:

Type of Information Example Reason for Collection
Identity Information Full name, date of birth, national ID number Account Verification & KYC
Contact Information Email, phone number, address Account Creation & Support
Financial Information Mobile Banking/Nagad number, transaction history Payment Processing
Technical Information IP address, device type, browser Security & Fraud Prevention
Usage Information Game history, betting patterns Service Improvement & Personalization
Cookies & Tracking Session cookies, preference data Improving User Experience

The information listed above is collected directly from you (during registration, transactions, or support requests), automatically (when you use our platform), and on occasion from trusted third parties such as payment providers.

399btc will never ask for your password or payment PIN by phone or email. If you ever receive such a request, please contact our support team immediately.

3 How We Use Your Information

399btc uses the information it collects for the following purposes:

  • Account Management: Completing the registration process, ensuring login security, and keeping account information up to date.
  • Transaction Processing: Your financial information is used to process deposits, withdrawals, and bonus payments.
  • Customer Support: To properly handle your questions, complaints, and support requests.
  • Security & Fraud Prevention: To detect unusual activity and maintain the security of the platform.
  • Legal Obligations: To comply with directives from relevant authorities and adhere to applicable laws.
  • Service Improvement: To analyze your usage patterns and improve 399btc's services.
  • Promotional Communications: To notify you of special offers and bonuses, with your consent.

If you no longer wish to receive promotional emails or SMS messages, you can opt out at any time by contacting our support team.

4 Data Sharing & Disclosure

399btc does not sell or commercially share your personal information with any third party. However, sharing may be necessary in the following limited circumstances:

  • Payment Providers: Necessary information is shared to process transactions via Mobile Banking, Nagad, Rocket, or crypto networks.
  • KYC Verification Provider: With licensed verification agencies for the identity verification process.
  • Legal Authorities: Information may be disclosed in response to a court order or a lawful request from a law enforcement agency.
  • Technology Partners: Cloud or IT service providers used to operate the platform — they act solely under the instructions of 399btc.

In all of the above cases, we ensure that the relevant party complies with appropriate data protection policies before any information is shared.

5 Cookie Policy

The 399btc website and app use cookies and similar tracking technologies. Cookies are small text files stored on your device.

  • Essential Cookies: To maintain login sessions and ensure core functionality — these cannot be disabled.
  • Performance Cookies: Used anonymously to monitor website speed and performance.
  • Preference Cookies: To remember your language, theme, and other preferences.
  • Marketing Cookies: To show you relevant offers based on your interests — you may opt out of these at any time.

You can delete or block cookies at any time through your browser settings. Please note that disabling certain cookies may affect the functionality of some platform features.

6 Data Security Measures

399btc has implemented industry-standard technical and organizational measures to protect your personal information. The core components of our security framework are:

  • 256-bit SSL/TLS encryption — maximum security for all data transfers.
  • Encrypted Database — all stored data is kept fully encrypted at rest.
  • Two-Factor Authentication (2FA) — an additional layer of security to protect account access.
  • Regular Security Audits — routine security assessments conducted by independent third-party experts.
  • Minimum Access Policy — only authorized personnel who require it can access your information.
  • Real-Time Threat Monitoring — unusual activity is detected and flagged immediately.

However, no data transmission over the internet can be guaranteed as completely secure. In the event of a data breach, we will promptly notify affected members and the relevant authorities.

7 Your Privacy Rights

As a member of 399btc, you have the following rights over your own information:

Right to Access
You may request to know what information 399btc holds about you and receive a copy of it.
Right to Rectification
You may request the correction of any inaccurate or incomplete information.
Right to Erasure
Under certain conditions, you may request that your data be deleted.
Right to Restrict Processing
In certain circumstances, you may request that the processing of your data be temporarily suspended.
Right to Data Portability
You may request your data in a portable format and use it elsewhere.
Right to Object
You may object to the use of your data for marketing or other specific purposes.

To exercise any of your rights, email us at [email protected] or reach out via live chat. We are required to respond within 30 days.

8 Children's Privacy

399btc is a platform exclusively for users aged 18 and above. We do not knowingly collect personal information from anyone under the age of 18.

Age verification is mandatory during registration. If we become aware that a minor has created an account, that account and all associated data will be deleted immediately.

If a parent or guardian suspects their child is using 399btc, please contact our support team immediately — we will take prompt action.

9 Data Retention Period

399btc retains your information only for as long as necessary. The general policy is as follows:

  • Active Account Information: Retained for the duration of active account status.
  • Transaction Records: Retained for up to 5 years as required by legal obligations.
  • KYC Documents: May be retained for up to 3 years after account closure.
  • Support Messages: Retained for up to 2 years after the issue is resolved.
  • Technical Logs: Automatically deleted within 90 days.

Once the retention period expires, your data is securely and permanently deleted or anonymized.

10 International Data Transfers

399btc's servers and infrastructure may be located in various countries. As a result, your data may be processed or stored outside of Bangladesh.

Regardless of where data is transferred, 399btc ensures that equivalent privacy protections are in place in the destination country or with the relevant organization.

For international data transfers, we follow standard contractual clauses and other recognized safeguarding measures.

11 Privacy Policy Changes

399btc may update this Privacy Policy at any time as needed. Before any significant changes, we will:

  • We will update the "Last Updated" date at the top of this page.
  • We will send a notification of any changes to your registered email address.
  • We will display a clear notice on the platform.

Continued use of the platform after any changes will be considered acceptance of the updated Privacy Policy. We therefore recommend reviewing this page regularly.

12 Get in Touch

If you have any questions, concerns, or requests regarding this Privacy Policy, please contact the dedicated 399btc Privacy Team:

  • Email: [email protected] (responses are typically sent within 24 hours)
  • Live Chat: Click the chat button at the bottom right of the platform
  • Help Center: FAQ Page View

We take your privacy rights seriously. Every request matters to us, and we aim to respond within a maximum of 30 business days.

399btc is committed to providing support to Bangladeshi members in their native language. Feel free to reach out to us in Bengali.

Protecting Your Data You Always Stay Ahead

399btc believes transparency is the best policy. You should have complete control over your own data.

SSL Secured
All data transfers are secured with 256-bit SSL encryption. Your information is completely safe.
Transparent KYC Process
The identity verification process is simple, transparent, and handled with the highest level of confidentiality.
24/7 Bangla Support
For any privacy-related questions, our support team is always ready to assist.
Legal Compliance
399btc complies fully and responsibly with international data protection standards and all applicable laws.

Your data is safe — Join Now!

Join thousands of trusted 399btc members. We are committed to delivering the best gaming experience while ensuring your privacy and security.

Data Not for Sale
SSL Encrypted
24/7 Bangla Support
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