The American technology company IBM says that it has designed a new, very powerful quantum computer processor. The company’s leaders made the announcement Monday. They said the processor, or chip, will lead to quantum systems performing better than traditional computer systems at some tasks within the next two years. Quantum computers use quantum physics to perform difficult computing tasks. IBM said that …

Scientists have developed a high-speed encryption system that can protect against the common security attacks, even if the equipment has flaws that could make it vulnerable to leaks. The system is capable of distributing encryption codes at megabit-per-second rates, five to 10 times faster than existing methods and on par with current Internet speeds when running several systems in parallel. …

A Chinese quantum satellite has dispatched transmissions over a distance of 1,200km (746 miles), a dozen times further than the previous record, a breakthrough in a technology that could be used to deliver secure messages, state media said on Friday. China launched the world’s first quantum satellite last August, to help establish “hack proof” communications between space and the ground, …