Quantum computing offers processing power so vast it may soon make todays supercomputers look as crude as 1980s PCs. The technology might also render the most secure encryption systems obsolete, cracking codes in a matter of minutes rather than months or years. Sales of its quantum key equipment have surged as Chinese banks, government agencies, and state-owned giants such as China Railway Corp. embrace the technology. The cybersecurity community must recognize the risks of quantum computing, says former researcher Gregoire Ribordy.”]