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Keeping text messages protected from hackers and eavesdroppers is crucial, but the government occasionally needs access to investigate criminals and terrorists, which raises privacy concerns for tech companies. Text messages are secured using end-to-end encryption. This process ensures data privacy during transit using two unique keys: public and private. The public key is shared with others and is part of the encryption protocol, while the private key remains on the user's device and is never shared. When two people want to chat securely, they use their public and private keys to generate a temporary shared key for encryption.