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Keeping text messages protected from hackers and eavesdroppers is crucial, yet governments occasionally seek access for criminal investigations, raising privacy concerns. Text messages are safeguarded by end-to-end encryption, which occurs when sending a secure message. This process involves two unique keys: a public key, shared with others for encryption, and a private key, stored only on the sender's device. During secure communication, these keys create a temporary shared key for encryption and decryption. For example, when Allyson sends a message to Bob, their devices exchange public keys, facilitating a secure conversation.