The notion of a quantum computer is no longer just theoretical. It is the most significant technology in the world, and nations are competing to become the leaders in quantum computing. The computing time will be cut down from years to hours or even minutes thanks to technology. The scientific community will greatly benefit from the capabilities of quantum computing. It does, however, represent severe risks to cyber security. All encryption algorithms are theoretically prone to damage. Compared to RSA-based cryptosystems, elliptic curve cryptography (ECC) is quicker, more effective, and more sensitive to quantum attacks. Standard ECC is still unworthy of establishing a secure network connection, nonetheless. The improved ECC method is used to extend the communication strategy, reconfiguring the message with the number of cipher-text from both sides. Therefore, we need to carefully evaluate the quantum security of EECC to prepare for the advent of quantum computers. In this, work a new strategy (CQAEECC) known as a collaborative quantum-assisted Extended Elliptic Curve Cryptography (EECC) to protect the transmission of information across networks. The mechanism of merging cryptographic methods and the private key is retrieved from the Quantum Cryptography used by Extended Elliptic Curve Cryptography to ensure greater security over networks. The novel cryptography is compared with standard algorithms and the results show that it is one of the most efficient public key cryptosystems (PKC) for desirable security. Thereupon, the proposed method has the ability to ensure confidentiality, integrity, and availability over the network.