Set up automated processes for list suppression on ad platforms

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Principle: You must obtain explicit consent from Telegram users for using their email addresses/phone numbers for purposes beyond direct Telegram communication, especially for advertising/retargeting on external platforms.
Bangladesh Context (2025): While specific comprehensive data protection laws like GDPR are still in development (e.g., the draft Personal Data Protection Ordinance, 2025 – PDPO), the direction of legal frameworks is clearly towards stronger data privacy.
The Digital Security Act (DSA), 2018, contains provisions related to unauthorized access to information and harming reputation, which could be relevant if data is misused or extracted without consent.
Anticipate stricter consent requirements: Assume future laws will demand explicit, specific, informed, and unambiguous consent for processing personal data, especially for marketing and sharing with third parties (like ad platforms).
Action: Ensure your consent language in Telegram is crystal clear. Do not pre-check consent boxes. Maintain a record of consent.
Transparency in Privacy Policy:

Principle: Your privacy policy must clearly state that you russia telegram mobile phone number list collect personal data (emails, phones) from Telegram, how it is used (e.g., for retargeting, custom audiences), and which third-party ad platforms you share it with.
Action: Make your privacy policy easily accessible from your Telegram bot and website.
Data Minimization:

Principle: Only share the data necessary for retargeting (e.g., hashed emails/phones). Do not share superfluous personal data.
Action: Ensure your data integration processes only transfer essential identifiers.
Data Security & Hashing:

Principle: When uploading customer lists to ad platforms, ensure the data is hashed (encrypted) before upload to protect privacy. Ad platforms typically do this automatically, but confirm.
Action: Use secure integration methods.
Respect Opt-Outs:

Principle: If a user opts out of your email list or requests data deletion, ensure they are removed from your custom audiences on ad platforms promptly.
Platform-Specific Policies:

Principle: Adhere to the specific Custom Audience and privacy policies of Meta, Google, LinkedIn, etc. These platforms have their own rules regarding data uploads and permissible targeting.