Companies can technically buy a quantum computer right now, but it’s not really the same as a general-purpose computer. Even if you don’t question whether or not it is quantum computing , it really amounts to specialized hardware. However, IBM hopes to change all that: it’s planning to build the first commercially-oriented universal quantum computer. The plan is to build a system with roughly 50 quantum bits (the Quantum Experience started with 5 and now simulates 20) within the next few years. That may not sound like much, but 50 qubits could be more powerful than the best supercomputers when handling some calculations — tasks that were impractical before would suddenly be within reach. Not surprisingly, you probably won’t get to use this quantum machine yourself. Much as in the old mainframe days, this computer is aimed at “business and science” customers that need to solve specific problems. To that end, IBM is helping research partners Canon, Hitachi Metals, Honda, JSR, Nagase and Samsung explore potential uses for quantum tech. The exciting part, IBM argues, isn’t so much the known performance as the possibilities. No one knows the full extent of what a universal quantum computer can do — it’s entirely feasible that the device will solve problems that aren’t even on the table right now. The biggest challenges are creating a tangible roadmap for production, and developing something affordable enough that it’s genuinely practical to use outside of a handful of cases. Source: IBM Think Blog , IBM News Room
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IBM plans to build a universal quantum computer
“A backdoor has been found in devices made by a Chinese tech firm specializing in VoIP products, ” reports TechRadar. An anonymous reader quotes their article: Security outfit Trustwave made the discovery of a hidden backdoor in DblTek’s devices which was apparently put there to allow the manufacturer access to said hardware — but of course, it’s also open to being exploited by other malicious parties. The backdoor is in the Telnet admin interface of DblTek-branded devices, and potentially allows an attacker to remotely open a shell with root privileges on the target device. What’s perhaps even more worrying is that when Trustwave contacted DblTek regarding the backdoor last autumn — multiple times — patched firmware was eventually released at the end of December. However, rather than removing the flaw, the vendor simply made it more difficult to access and exploit. And further correspondence with the Chinese company has apparently fallen on deaf ears. The firmware with the hole “is present on almost every GSM-to-VoIP device which DblTek makes, ” and Trustwave “found hundreds of these devices on the net, and many other brands which use the same firmware, so are equally open to exploit.” Read more of this story at Slashdot.