Menu

Blog

Archive for the ‘internet’ category: Page 9

Jun 22, 2021

Bugs in NVIDIA’s Jetson Chipset Opens Door to DoS Attacks, Data Theft

Posted by in categories: cybercrime/malcode, drones, information science, internet, robotics/AI

Chipmaker patches nine high-severity bugs in its Jetson SoC framework tied to the way it handles low-level cryptographic algorithms.

Flaws impacting millions of internet of things (IoT) devices running NVIDIA’s Jetson chips open the door for a variety of hacks, including denial-of-service (DoS) attacks or the siphoning of data.

NVIDIA released patches addressing nine high-severity vulnerabilities including eight additional bugs of less severity. The patches fix a wide swath of NVIDIA’s chipsets typically used for embedded computing systems, machine-learning applications and autonomous devices such as robots and drones.
Impacted products include Jetson chipset series; AGX Xavier, Xavier NX/TX1, Jetson TX2 (including Jetson TX2 NX), and Jetson Nano devices (including Jetson Nano 2GB) found in the NVIDIA JetPack software developers kit. The patches were delivered as part of NVIDIA’s June security bulletin, released Friday.

Jun 22, 2021

6G is expected to be commercially available around 2030

Posted by in category: internet

Jun 21, 2021

Laser-Driven Semiconductor Switch for Next-Generation Communications

Posted by in categories: internet, satellites

Lawrence Livermore National Laboratory engineers have designed a new kind of laser-driven semiconductor switch that can theoretically achieve higher speeds at higher voltages than existing photoconductive devices. If the device could be realized, it could be miniaturized and incorporated into satellites to enable communication systems beyond 5G, potentially transferring more data at a faster rate and over longer distances, according to researchers. Credit: LLNL

Lawrence Livermore National Laboratory (LLNL) engineers have designed a new kind of laser-driven semiconductor switch that can theoretically achieve higher speeds at higher voltages than existing photoconductive devices. The development of such a device could enable next-generation satellite communication systems capable of transferring more data at a faster rate, and over longer distances, according to the research team.

Scientists at LLNL and the University of Illinois Urbana-Champaign (UIUC) reported on the design and simulation of the novel photoconductive device in a paper published in the IEEE Journal of the Electron Devices Society. The device utilizes a high-powered laser to generate an electron charge cloud in the base material gallium nitride while under extreme electric fields.

Continue reading “Laser-Driven Semiconductor Switch for Next-Generation Communications” »

Jun 20, 2021

Big Tech Is Going Public in India

Posted by in categories: finance, internet

That could reshape the Indian market, which has very few internet companies. While big tech firms are among the largest listed companies in China and the U.S., energy, financials and IT outsourcers currently dominate the Indian market. Reliance Industries —India’s biggest listed company, controlled by the country’s richest man—is pivoting away from oil and gas and last year secured investments from Facebook and Google for its tech unit, Jio Platforms.


Companies such as Zomato, Flipkart and fintech giant Paytm are considering initial public offerings in what could be a transformative moment for India’s stock market.

Jun 18, 2021

Photonic transistor and router using a single quantum-dot-confined spin in a single-sided optical microcavity

Posted by in categories: computing, internet, particle physics, quantum physics, security

Circa 2017


The future Internet is very likely the mixture of all-optical Internet with low power consumption and quantum Internet with absolute security. The optical regular Internet would be used by default, but switched over to quantum Internet when sensitive data need to be transmitted. PT and and its counterpart in the quantum limit SPT would be the core components for both OIP and QIP in future Internet. Compared with electronic transistors, PTs/SPTs potentially have higher speed, lower power consumption and compatibility with fibre-optic communication systems.

Several schemes for PT6,7,8,9,10 and SPT11,12,13,14,15,16,17 have been proposed or even proof-of-principle demonstrated. All these prototypes exploit optical nonlinearities, i.e., photon-photon interactions18. However, photons do not interact with each other intrinsically, so indirect photon-photon interactions via electromagnetically induced transparency (EIT)19, photon blockade20 and Rydberg blockade21 were intensively investigated in this context over last two decades in either natural atoms22,23 or artificial atoms including superconducting boxes24,25 and semiconductor quantum dots (QDs)12,13. PT can seldom work in the quantum limit as SPT with the gain greater than 1 because of two big challenges, i.e., the difficulty to achieve the optical nonlinearities at single-photon levels and the distortion of single-photon pulse shape and inevitable noise produced by these nonlinearities26. The QD-cavity QED system is a promising solid-state platform for information and communication technology (ICT) due to their inherent scalability and matured semiconductor technology. But the photon blockade resulting from the anharmonicity of Jaynes-Cummings energy ladder27 is hard to achieve due to the small ratio of the QD-cavity coupling strength to the system dissipation rates12,13,28,29,30,31,32 and the strong QD saturation33. Moreover, the gain of this type of SPT based on the photon blockade is quite limited and only 2.2 is expected for In(Ga)As QDs12,13.

Continue reading “Photonic transistor and router using a single quantum-dot-confined spin in a single-sided optical microcavity” »

Jun 17, 2021

Threat Actors Use Google Docs to Host Phishing Attacks

Posted by in categories: cybercrime/malcode, internet

Exploit in the widely used document service leveraged to send malicious links that appear legitimate but actually steal victims credentials.

Threat actors are exploiting Google Docs by hosting their attacks within the web-based document service in a new phishing campaign that delivers malicious links aimed at stealing victims’ credentials.

Researchers at email and collaboration security firm Avanan discovered the campaign, which is the first time they said they’ve seen attackers use this type of exploit in Google’s hosted document service, according to a report published Thursday by Jeremy Fuchs, marketing content manager for Avanan.

Jun 16, 2021

Starlink dishes go into thermal shutdown once they hit 122° Fahrenheit

Posted by in category: internet

Man watered dish to cool it down but overheating knocked it offline for 7 hours.

Jun 15, 2021

Critical remote code execution flaw in thousands of VMWare vCenter servers remains unpatched

Posted by in category: internet

Close to a month on, internet-facing servers remain vulnerable to attack.

Jun 14, 2021

New record distance for quantum communications

Posted by in categories: biotech/medical, computing, government, internet, quantum physics

Toshiba’s Cambridge Research Laboratory has achieved quantum communications over optical fibres exceeding 600 km in length, three times further than the previous world record distance.

The breakthrough will enable long distance, quantum-secured information transfer between metropolitan areas and is a major advance towards building a future Quantum Internet.

The term “Quantum Internet” describes a global network of quantum computers, connected by long distance quantum communication links. This technology will improve the current Internet by offering several major benefits – such as the ultra-fast solving of complex optimisation problems in the cloud, a more accurate global timing system, and ultra-secure communications. Personal data, medical records, bank details, and other information will be physically impossible to intercept by hackers. Several large government initiatives to build a Quantum Internet have been announced in China, the EU and the USA.

Jun 14, 2021

Amazon Sidewalk could raise your Wifi bill cybersecurity, expert says

Posted by in categories: cybercrime/malcode, habitats, internet

LYNCHBURG, Va (WSET) — Strangers may soon be able to use your Wi-Fi — It’s all through Amazon Sidewalk.

It’s an internet-sharing network for Amazon Echo, Ring and Tile devices. Officials say it’s a way to use WiFi from neighboring homes that also have Amazon products.

Randy Marchany a cybersecurity expert with Virginia Tech feels this is another way to collect information. He says it’s specifically picking up on user habits and whereabouts.

Continue reading “Amazon Sidewalk could raise your Wifi bill cybersecurity, expert says” »

Page 9 of 175First678910111213Last