Group 1 - The core viewpoint is that quantum computers, while having the potential to outperform classical computers in specific tasks, are still in the early stages of development and do not currently pose a threat to bank accounts [1][2][3] - Quantum computers operate based on quantum mechanics principles, allowing for unique phenomena such as quantum superposition and entanglement, which can enable them to solve certain problems much faster than traditional computers [1][2] - The claim that quantum computers can instantly crack all passwords is linked to Peter Shor's quantum factorization algorithm, which poses a potential threat to current RSA encryption but does not imply that all passwords can be easily compromised [1][2] Group 2 - The development of quantum computers faces significant challenges due to the stringent environmental requirements of quantum mechanics and the complexity of manipulating quantum states accurately [2] - Current quantum computing technologies, such as superconducting quantum circuits and photonic quantum systems, have made some progress but are far from maturity, with ongoing efforts needed to scale up and ensure error correction [2] - In response to potential threats from quantum computing, countries are advancing the research and implementation of quantum-resistant encryption, which is based on classical physics and presents fewer technical challenges compared to building quantum computers [2]