Security of the Telegram Database:

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Telegram places a strong emphasis on security. Here are some key aspects of how they protect their databases:

Encryption: Telegram states that all data stored on their servers, including cloud chats and media, is heavily encrypted. The encryption keys are reportedly stored in multiple data centers in different jurisdictions, making it extremely difficult for any single indonesia telegram phone number list entity to access the data.
End-to-End Encryption (Secret Chats): For "secret chats," Telegram utilizes end-to-end encryption, meaning that messages are encrypted on the sender's device and can only be decrypted on the recipient's device. Not even Telegram's servers have access to the decryption keys for secret chats. These chats are not stored on their cloud servers.
MTProto Protocol: Telegram uses its own custom-designed protocol called MTProto, which has undergone several revisions, to ensure secure data transmission.
Local Database Security: While the local database on your device stores decrypted data for faster access, the security of this data depends on the security of your device itself (e.g., using a strong lock screen).