Telegram_csv.rar -

Set "Who can add me to group chats" to My Contacts only.

Attackers use the linked phone numbers or names to craft targeted social engineering attacks. Telegram_csv.rar

To prevent your data from appearing in future versions of these "csv.rar" files, adjust your Telegram Privacy Settings: Set "Who can add me to group chats" to My Contacts only

Unique numerical identifiers for Telegram accounts. Telegram_csv.rar

Possessing or distributing scraped personal data may violate privacy laws like the GDPR depending on your jurisdiction. How to Protect Your Account

Set "Who can see my phone number" to Nobody or My Contacts .