By IQT News posted 19 Mar 2021

(KoreaBizWire) KT Corp., a major South Korean telecom operator, said Wednesday that it had developed new technology that prevents smartphone eavesdropping through the use of quantum encrypted voice data.
The new technology enables the use of quantum encryption technology without a physical scrambler device.A scrambler is a device that prevents signal theft by sending the voice data in an encrypted format.
If a receiver is not equipped with a descrambling device, the encrypted voice data cannot be deciphered. Scramblers are used mainly in defense areas and national intelligence agencies.
If a quantum security communication terminal is connected to both the sender and receiver’s devices, the security mode is activated and the voice is encrypted, thereby providing protection against any attempt to eavesdrop on conversation.

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