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Archive for the ‘internet’ category: Page 215

Jul 23, 2018

Xage secures $12 million Series A for IoT security solution on blockchain

Posted by in categories: bitcoin, internet, security

Xage (pronounced Zage), a blockchain security startup based in Silicon Valley, announced a $12 million Series A investment today led by March Capital Partners. GE Ventures, City Light Capital and NexStar Partners also participated.

The company emerged from stealth in December with a novel idea to secure the myriad of devices in the industrial internet of things on the blockchain. Here’s how I described it in a December 2017 story:

Xage is building a security fabric for IoT, which takes blockchain and synthesizes it with other capabilities to create a secure environment for devices to operate. If the blockchain is at its core a trust mechanism, then it can give companies confidence that their IoT devices can’t be compromised. Xage thinks that the blockchain is the perfect solution to this problem.

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Jul 23, 2018

Ytterbium: The quantum memory of tomorrow

Posted by in categories: encryption, internet, quantum physics, security

Quantum communication and cryptography are the future of high-security communication. But many challenges lie ahead before a worldwide quantum network can be set up, including propagating the quantum signal over long distances. One of the major challenges is to create memories with the capacity to store quantum information carried by light. Researchers at the University of Geneva (UNIGE), Switzerland, in partnership with CNRS, France, have discovered a new material in which an element, ytterbium, can store and protect the fragile quantum information even while operating at high frequencies. This makes ytterbium an ideal candidate for future quantum networks, where the aim is to propagate the signal over long distances by acting as repeaters. These results are published in the journal Nature Materials.

Quantum cryptography today uses optical fibre over several hundred kilometres and is marked by its high degree of security: it is impossible to copy or intercept information without making it disappear.

However, the fact that it is impossible to copy the signal also prevents scientists from amplifying it to diffuse it over long distances, as is the case with the Wi-Fi network.

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Jul 20, 2018

Team suggests a way to protect autonomous grids from potentially crippling GPS spoofing attacks

Posted by in categories: biotech/medical, cybercrime/malcode, drones, engineering, internet, robotics/AI

Not long ago, getting a virus was about the worst thing computer users could expect in terms of system vulnerability. But in our current age of hyper-connectedness and the emerging Internet of Things, that’s no longer the case. With connectivity, a new principle has emerged, one of universal concern to those who work in the area of systems control, like João Hespanha, a professor in the departments of Electrical and Computer Engineering, and Mechanical Engineering at UC Santa Barbara. That law says, essentially, that the more complex and connected a system is, the more susceptible it is to disruptive cyber-attacks.

“It is about something much different than your regular computer virus,” Hespanha said. “It is more about cyber physical systems—systems in which computers are connected to physical elements. That could be robots, drones, smart appliances, or infrastructure systems such as those used to distribute energy and water.”

In a paper titled “Distributed Estimation of Power System Oscillation Modes under Attacks on GPS Clocks,” published this month in the journal IEEE Transactions on Instrumentation and Measurement, Hespanha and co-author Yongqiang Wang (a former UCSB postdoctoral research and now a faculty member at Clemson University) suggest a new method for protecting the increasingly complex and connected power grid from attack.

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Jul 20, 2018

How to Make Your Wifi Router as Secure as Possible

Posted by in categories: cybercrime/malcode, internet

Though more router manufacturers are making routers easier to set up and configure—even via handy little apps instead of annoying web-based interfaces—most people probably don’t tweak many options after purchasing a new router. They log in, change the name and passwords for their wifi networks, and call it a day.

While that gets you up and running with (hopefully) speedy wireless connectivity, and the odds are decent that your neighbor or some random evil Internet person isn’t trying to hack into your router, there’s still a lot more you can do to boost the security of your router (and home network).

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Jul 12, 2018

How to build synthetic DNA and send it across the internet

Posted by in categories: biotech/medical, computing, internet

Biologist Dan Gibson edits and programs DNA, just like coders program a computer. But his “code” creates life, giving scientists the power to convert digital information into biological material like proteins and vaccines. Now he’s on to a new project: “biological transportation,” which holds the promise of beaming new medicines across the globe over the internet. Learn more about how this technology could change the way we respond to disease outbreaks and enable us to download personalized prescriptions in our homes.

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Jul 6, 2018

High-power thermoelectric generator utilizes thermal difference of only 5C

Posted by in categories: internet, nanotechnology, robotics/AI, wearables

A team of Japanese researchers from Waseda University, Osaka University, and Shizuoka University designed and successfully developed a high-power, silicon-nanowire thermoelectric generator which, at a thermal difference of only 5 degrees C, could drive various IoT devices autonomously in the near future.

Objects in our daily lives, such as speakers, refrigerators, and even cars, are becoming “smarter” day by day as they connect to the internet and exchange data, creating the Internet of Things (IoT), a network among the objects themselves. Toward an IoT-based society, a miniaturized is anticipated to charge these objects, especially for those that are portable and wearable.

Due to advantages such as its relatively low thermal conductance but high electric conductance, have emerged as a promising thermoelectric material. Silicon-based thermoelectric generators conventionally employed long, nanowires of about 10–100 nanometers, which were suspended on a cavity to cutoff the bypass of the heat current and secure the temperature difference across the silicon nanowires. However, the cavity structure weakened the mechanical strength of the devices and increased the fabrication cost.

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Jul 4, 2018

China has 9 of the world’s 20 biggest tech companies

Posted by in category: internet

China is on the rise when it comes to the number of massive tech companies in the country.


China is nearly even with the U.S. when it comes to who’s home to the most giant tech companies.

It’s got nine of the world’s top 20 tech giants, while the U.S. has got the other 11, according to this chart from Kleiner Perkins Caufield & Byers partner Mary Meeker’s annual report on internet trends.

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Jul 3, 2018

How to See Who’s On Your Wi-Fi

Posted by in categories: cybercrime/malcode, internet

Is your internet moving a little slower than usual? Are you seeing hints of devices you don’t recognize in Windows Explorer, or when you cast media to your TV? If you suspect a neighbor is stealing your Wi-Fi, here’s how to check (and boot them off).

“So someone’s watching Netflix on my internet,” you may say. “What’s the big deal?” Even if you have a little bandwidth to spare, you probably don’t want other people on your network, especially if it’s unsecured. If someone has access to your network, they have access to all the computers on that network, and that’s dangerous. They could access files you’re unknowingly sharing, they could infect you with malware, and in certain situations they could even steal your passwords and other personal information.

As a result, you should take care to make sure each device connected to your network is one you can trust. Thankfully, there are free tools that’ll help you see everyone on your Wi-Fi right now.

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Jul 1, 2018

A Free Education for All the World’s People Will Save our Species

Posted by in categories: computing, education, ethics, finance, internet

In terms of moral, social, and philosophical uprightness, isn’t it striking to have the technology to provide a free education to all the world’s people (i.e. the Internet and cheap computers) and not do it? Isn’t it classist and backward to have the ability to teach the world yet still deny millions of people that opportunity due to location and finances? Isn’t that immoral? Isn’t it patently unjust? Should it not be a universal human goal to enable everyone to learn whatever they want, as much as they want, whenever they want, entirely for free if our technology permits it? These questions become particularly deep if we consider teaching, learning, and education to be sacred enterprises.


When we as a global community confront the truly difficult question of considering what is really worth devoting our limited time and resources to in an era marked by global catastrophe, I always find my mind returning to what the Internet hasn’t really been used for yet — and what was rumored from its inception that it should ultimately provide — an utterly and entirely free education for all the world’s people.

In regard to such a concept, Bill Gates said in 2010:

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Jun 30, 2018

Extra PCs laying around? Why not mine Bitcoin?

Posted by in categories: bitcoin, cryptocurrencies, economics, internet, supercomputing

I get this question a lot. Today, I was asked to write an answer at Quora.com, a Q&A web site at which I am the local cryptocurrency expert. It’s time to address this issue here at Lifeboat.

Question

I have many PCs laying around my home and office.
Some are current models with fast Intel CPUs. Can
I mine Bitcoin to make a little money on the side?

Answer

Other answers focus on the cost of electricity, the number of hashes or teraflops achieved by a computer CPU or the size of the current Bitcoin reward. But, you needn’t dig into any of these details to understand this answer.

You can find the mining software to mine Bitcoin or any other coin on any equipment. Even a phone or wristwatch. But, don’t expect to make money. Mining Bitcoin with an x86 CPU (Core or Pentium equivalent) is never cost effective—not even when Bitcoin was trading at nearly $20,000. A computer with a fast $1500 graphics card will bring you closer to profitability, but not by much.

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