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Archive for the ‘security’ category

Oct 15, 2020

Australlite: There have been lots of posts about SpaceX StarLink starting services in Australia

Posted by in categories: education, food, government, health, internet, satellites, security

In 2016, I proposed LEO HTS Mega Constellation a viable solution for Australia’s broadband national coverage. I have been doing research on these constellations right from the beginning and they are inevitable!


Introduction

Utilizing the announced Lower Earth Orbit (LEO) satellites constellations of OneWeb, SpaceX, LeoSat & Samsung to provide high speed connectivity to entire Australian continent with performance better than fiber networks. This project can eliminate high cost NBN roll out to scattered populations and will considerably improve disaster management. Providing high speed connectivity for mobile communication, internet, high resolution TV broadcast as well as utilizing technologies like IoT & Cloud for improvement in security, education, health, agriculture, livestock farming, mineral resources, wildlife, and environment without any coverage black-spots. This network will not require any infrastructure installations and will help the Government to generate revenues by issuing spectrum licenses to local as well as foreign investors for providing services directly to the end user.

Continue reading “Australlite: There have been lots of posts about SpaceX StarLink starting services in Australia” »

Oct 13, 2020

Home security cams hacked in Singapore, and stolen footage sold on adult websites

Posted by in categories: food, habitats, internet, security

* Unsecured home security cameras hijacked * Stolen images circulate on Discord * Everyone needs to take IoT security more seriously.

In Singapore it’s not at all uncommon today for people to have IP cameras all over their homes.

And, of course, the more people who installed internet-connected cameras throughout their private residences the more you would be considered odd if you hadn’t jumped on the bandwagon, and put cameras in your living room, kitchen, bedroom, sometimes even with a view of even more private areas of your house.

Continue reading “Home security cams hacked in Singapore, and stolen footage sold on adult websites” »

Oct 12, 2020

Graphene Detector Reveals THz Light’s Polarization Using Interference of Plasma Waves

Posted by in categories: biotech/medical, chemistry, security

Physicists have created a broadband detector of terahertz radiation based on graphene. The device has potential for applications in communication and next-generation information transmission systems, security, and medical equipment. The study came out in ACS Nano Letters.

The new detector relies on the interference of plasma waves. Interference as such underlies many technological applications and everyday phenomena. It determines the sound of musical instruments and causes the rainbow colors in soap bubbles, along with many other effects. The interference of electromagnetic waves is harnessed by various spectral devices used to determine the chemical composition, physical and other properties of objects — including very remote ones, such as stars and galaxies.

Plasma waves in metals and semiconductors have recently attracted much attention from researchers and engineers. Like the more familiar acoustic waves, the ones that occur in plasmas are essentially density waves, too, but they involve charge carriers: electrons and holes. Their local density variation gives rise to an electric field, which nudges other charge carriers as it propagates through the material. This is similar to how the pressure gradient of a sound wave impels the gas or liquid particles in an ever expanding region. However, plasma waves die down rapidly in conventional conductors.

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Oct 10, 2020

Drone-jamming gun claimed to be one of the smallest and lightest

Posted by in categories: drones, security

For people such as soldiers, security officials and airport workers, drones aren’t always a welcome sight. That’s why drone-jamming guns were developed, and the new Paladyne E1000MP “pistol” is said to be one of the most compact on the market.

Manufactured by British company Drone Defence, the E1000MP works in the same fashion as similar products – it emits an electromagnetic signal at the same frequency that a target drone utilizes for control communications, GPS orientation, and video transmission. This causes the drone to lose communication with its operator, resulting in it automatically landing or returning to its point of take-off.

The gun has an operational range of 1 km (0.6 miles), and can be used with either a directional or omnidirectional antenna – the former focuses the jamming signal on one particular drone, while the latter spreads the signal out over a wider area that needs protecting.

Oct 4, 2020

Single photons from a silicon chip

Posted by in categories: encryption, quantum physics, robotics/AI, security

(Nanowerk News) Quantum technology holds great promise: Just a few years from now, quantum computers are expected to revolutionize database searches, AI systems, and computational simulations. Today already, quantum cryptography can guarantee absolutely secure data transfer, albeit with limitations. The greatest possible compatibility with our current silicon-based electronics will be a key advantage. And that is precisely where physicists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and TU Dresden have made remarkable progress: The team has designed a silicon-based light source to generate single photons that propagate well in glass fibers.

Oct 2, 2020

Tunable free-electron X-ray radiation from van der Waals materials

Posted by in categories: biotech/medical, chemistry, engineering, nanotechnology, quantum physics, security

Technion researchers have developed accurate radiation sources that are expected to lead to breakthroughs in medical imaging and other areas. They have developed precise radiation sources that may replace the expensive and cumbersome facilities currently used for such tasks. The suggested apparatus produces controlled radiation with a narrow spectrum that can be tuned with high resolution, at a relatively low energy investment. The findings are likely to lead to breakthroughs in a variety of fields, including the analysis of chemicals and biological materials, medical imaging, X-ray equipment for security screening, and other uses of accurate X-ray sources.

Published in the journal Nature Photonics, the study was led by Professor Ido Kaminer and his master’s student Michael Shentcis as part of a collaboration with several research institutes at the Technion: the Andrew and Erna Viterbi Faculty of Electrical Engineering, the Solid State Institute, the Russell Berrie Nanotechnology Institute (RBNI), and the Helen Diller Center for Quantum Science, Matter and Engineering.

The researchers’ paper shows an experimental observation that provides the first proof-of-concept for theoretical models developed over the last decade in a series of constitutive articles. The first article on the subject also appeared in Nature Photonics. Written by Prof. Kaminer during his postdoc at MIT, under the supervision of Prof. Marin Soljacic and Prof. John Joannopoulos, that paper presented theoretically how two-dimensional materials can create X-rays. According to Prof. Kaminer, “that article marked the beginning of a journey towards sources based on the unique physics of two-dimensional materials and their various combinations—heterostructures. We have built on the theoretical breakthrough from that article to develop a series of follow-up articles, and now, we are excited to announce the first experimental observation on the creation of X-ray radiation from such materials, while precisely controlling the radiation parameters.”

Sep 25, 2020

Amazon’s new Ring drone stops the world’s most hapless thief in bass-slapping ad

Posted by in categories: drones, mobile phones, security

The Always Home Cam foils a very sloppy burglar.


Ring has given a brief demo of its flying security camera drone in a new ad. The Always Home Cam will be available next year and can be controlled with your phone.

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Sep 10, 2020

Northrop Grumman to terminate OmegA rocket program

Posted by in categories: business, security, space

WASHINGTON — Northrop Grumman announced it will not move forward with the development of the OmegA rocket. The vehicle was designed for the sole purpose of competing for a National Security Space Launch contract award but didn’t make the cut.

“We have chosen not to continue development of the OmegA launch system at this time,” Northrop Grumman spokeswoman Jennifer Bowman said in a statement. “We look forward to continuing to play a key role in National Security Space Launch missions and leveraging our OmegA investments in other activities across our business.”

Bowman said the company will not be protesting the U.S. Space Force’s decision to select United Launch Alliance and SpaceX for the NSSL contracts.

Sep 8, 2020

Multi-user communication network paves the way towards the quantum internet

Posted by in categories: internet, quantum physics, security

The concept of quantum communication, with security guaranteed by the laws of physics, took the worl.

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Sep 7, 2020

The Air Force Just Tested “Robot Dogs” For Use In Base Security

Posted by in categories: robotics/AI, security

The quadrupedal robots secured the perimeter of a base during a recent test of the USAF’s Advanced Battle Management System.

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