The document discusses advancements in quantum computing and their implications for online security, specifically focusing on three cryptographic techniques: quantum key distribution (QKD), lattice-based cryptography, and multivariate cryptography. The research shows that while QKD is notably effective against quantum attacks, lattice-based cryptography and multivariate cryptography require significant improvements to enhance their resilience. Ultimately, the study emphasizes the urgent need for further development of cryptographic algorithms to ensure robust security in the quantum computing era.