Contact Filesdriverobot - Telegram

A small team uses Telegram for daily updates. The project manager uses FilesDriverobot to:

| Risk | Description | Mitigation | |------|-------------|-------------| | Contact data leak | Bot stores user contacts in plaintext | Encrypt at rest, auto-delete after session | | File interception | Files pass through bot’s server | Use end-to-end encryption + ephemeral storage | | Impersonation | Malicious bot pretends to be FDRB | Verify bot username, use Telegram’s login widget | | Command injection | Malformed file names or contact inputs | Sanitize all metadata before processing | telegram contact filesdriverobot

# Simplified bot logic
def handle_file_message(update):
    user_id = update.message.from_user.id
    contact_phone = extract_contact(update.message.text)
    file = update.message.document
if not user_consent_given(user_id):
    request_contact_permission(user_id)
target_user_id = resolve_phone_to_telegram_id(contact_phone)
if target_user_id:
    send_file_to_user(target_user_id, file)
    delete_local_file(file.file_id)

A teacher wants to distribute lesson notes to paid students individually: A small team uses Telegram for daily updates

FilesDriverobot needs to recognize your contacts. Most users expect the bot to automatically pull your Telegram contact list, but for privacy reasons, you must explicitly allow this. A teacher wants to distribute lesson notes to

Pro tip: If a contact hasn’t interacted with the bot, ask them to send any message to @FilesDriveRobot first. This activates their ID in the bot’s system.