Meet Wi-Fi 8, which trades speed for a more reliable experience

https://www.pcworld.com/article/2518469/meet-wi-fi-8-which-trades-speed-for-a-more-reliable-experience.html

The next generation of Wi-Fi, Wi-Fi 8, is currently being developed behind closed doors. This time, the emphasis isn’t on pure speed, but instead on improving the user experience.

Wi-Fi 8, known right now as IEEE 802.11bn Ultra High Reliability, still remains years away. Wireless technology is in a constant state of improvement: Each progression in the evolution of Wi-Fi takes several years to discuss, approve, and then deploy. Wi-Fi 7, the “current” standard, hasn’t even been formally ratified quite yet.

But that’s not stopping the development of Wi-Fi 8 behind the scenes, and we already know some details. MediaTek’s Filogic wireless division has released some of what you can expect, with the caveat that final details won’t be nailed down until the final specification is released around Sept. 2028.

The key phrase that you should think of in the context of Wi-Fi 8? Not peak throughput, but effective throughput.

Further reading: The 5 most dangerous Wi-Fi attacks, and how to fight them

Wi-Fi 8 will look a lot like Wi-Fi 7

According to the Wi-Fi Alliance and MediaTek, the United States isn’t the driving force behind the wireless evolution. Instead, it’s China: The country has 650 million broadband subscribers and more than a quarter have 1Gbps broadband connections to their homes. Overall, the average connection speed is 487.6Mbps, which grew 18 percent in a year’s time.

MediaTek

Theoretically, 802.11bn / Wi-Fi 8 set out (Word document, via the IEEE) to provide enough wireless bandwidth to accommodate your broadband gateway supplying a few gigabits per second, and factoring in the ability of Ethernet to provide even more. EverythingRF interpreted that 2022 document, known as Project Authorization Request (PAR), as one that would provide a minimum aggregate throughput of 100Gbps.

Since then, the PAR was approved in 2023, and the working group has begun hammering out more details. As of Nov. 2024, MediaTek believes that Wi-Fi 8 will look virtually identical to Wi-Fi 7 in several key areas: The maximum physical layer (PHY) rate will be the same at 2,880Mbps x 8, or 23Gbits/s. It will also use the same three frequency bands (2.4, 5, and 6GHz) and the same 4096 QAM modulation across a maximum channel bandwidth of 320MHz.

(A Wi-Fi 8 router won’t get 23Gbps of bandwidth, of course. According to MediaTek, the actual peak throughput in a “clean,” or laboratory, environment is just 80 percent or so of the hypothetical peak throughput, and actual, real-world results can be far less.)

MediaTek

Still, put simply, Wi-Fi 8 should deliver the same wireless bandwidth as Wi-Fi 7, using the same channels and the same modulation. Every Wi-Fi standard has also been backwards-compatible with its predecessors, too. What Wi-Fi 8 will do, though, is change how your client device, such as a PC or a phone, interacts with multiple access points.

Think of this as an evolution of how your laptop talks to your home’s networking equipment. Over time, Wi-Fi has evolved from communications between one laptop and a router, across a single channel. Channel hopping routed different clients to different bands. When Wi-Fi 6 was developed, a dedicated 6GHz channel was added, sometimes as a dedicated “backhaul” between your home’s access points. Now, mesh networks are more common, giving your laptop a variety of access points, channels, and frequencies to select between.

How Wi-Fi 8 will improve Wi-Fi technology

MediaTek sees several opportunities to improve the coordination between access points and devices. (To be fair, we’re identifying these as MediaTek’s efforts, only because we can’t be sure that they’ll eventually be approved by the 802.11bn working group for Wi-Fi 8 as a whole.)

Coordinated Spatial Reuse (Co-SR): This technology was first implemented in Wi-Fi 6 as Spatial Reuse. The problem occurred when there was a difference in transmission power between an access point “talking” to a nearby device, and simultaneously communicating with a second access point a great distance away. If the first access point reduced its power to communicate with the nearby device, it couldn’t be “heard” by the access point.

Wi-Fi 8’s Co-SR is a “maturation” of the Spatial Reuse technology, and will solve the problem by allowing the access points to talk to one another and coordinate their power output, MediaTek said. “Our preliminary trials show that Co-SR could increase the overall system throughput by 15 percent to 25 percent,” MediaTek says.

MediaTek

Coordinated Beamforming (Co-BF): There’s a trend here: Taking earlier Wi-Fi technologies and extending them to multiple access points. Spatial nulling was a feature that was launched in 802.11ac (Wi-Fi 5), which allowed the router to basically stop signaling in certain directions. By doing so, the router would send the signals to where they were requested, and avoid jamming devices that didn’t want to talk to the router.

This technique attempts to solve a fairly common problem in connected households, or in a public space served by Wi-Fi: two devices that sit very close to one another. Coordinated beamforming allows the access points to talk to one another, figure out which device wants the signal and which doesn’t, and align the mesh access point to “steer” the signal away from the device that isn’t communicating to the network by basically refusing to transmit to the region in which it sits.

“The throughput offered by Coordinated Beamforming (Co-BF) in next-generation MediaTek Filogic is significantly enhanced, with increases ranging from 20 percent to 50 percent in a mesh network setup with one Control AP and one Agent AP,” MediaTek said.

Dynamic Sub-Channel Operation: You’re probably aware that the latest devices support for the latest wireless standards, like Wi-Fi 7. But certain devices may also have more or improved Wi-Fi antennas that allow them higher throughput. In the past, that information would be passed to the router, and stored there.

That wouldn’t be a problem under most conditions. But in a scenario where a number of different devices were downloading the same file, DSO would create a dynamic scenario where a more advanced device would receive a subchannel for downloading the file, faster. The difference between the older approach and Wi-Fi 8’s DSO would be that the access point would be able to decide, “knowing” the capabilities of each device and what they were asking for, and route the data accordingly.

Here, MediaTek believes that DSO could push data throughput 80 percent higher than without the technology.

MediaTek

New data rates: You may not be aware of what’s called the MCS Index, the Modulation Coding Scheme for Wi-Fi. It’s basically a table to help your Wi-Fi router determine what the link speed should be, so that you can actually connect and stream data without errors. If your throughput slows down as you move around your house, that’s in part due to your device and router “deciding” what connection speed your device should stream at.

The problem, MediaTek believes, is that the “step” down to slower rates is too profound, and additional gradations should be introduced, such as 16-QAM with a 2/3 coding rate. The idea would not be to introduce sharp drops and increases in throughput as you moved your phone or laptop around the home, but smaller increments. Again, MediaTek believes that these finer MCS divisions can improve overall transmission rates between 5 percent and 30 percent.

A change of pace

Again, the evolution of Wi-Fi 8 depends on how quickly the standard moves through the regulatory process. Wi-Fi 7 (802.11be) was expected to be approved this past September, and it has not, yet. Sony’s PlayStation 5 may not be approved for India because the country has yet to approve the 6GHz wireless channel that the Wi-Fi 7 standard depends upon. That would hinder Wi-Fi 8, too.

MediaTek

Wireless standards take about six years to develop — and impatient hardware makers rarely wait. As MediaTek notes, Wi-Fi 7 products have shipped since the end of 2023, even though the standard hasn’t been formally approved. In part, that’s because the IEEE committee in charge of the standard rarely makes dramatic changes between the approval of the draft standard and the final standard. For Wi-Fi 8, the first products are expected to be available in early 2028, even as the final approval should be due by the end of that year.

It’s worth noting, however, that the race to perpetually higher and higher speeds is pausing, for now, in two different segments of the PC market. CPUs have slowed their rush toward higher clock speeds — at Qualcomm and at Intel — in favor of lower power. With Wi-Fi 8, the emphasis now appears to be on improving the overall user experience first and foremost.

Correction: Wi-Fi 8 will use the 2.4GHz frequency band, not the 2 and 4GHz frequency bands. The author sincerely regrets that error.

via PCWorld https://www.pcworld.com

December 26, 2024 at 11:05AM

ULA Wants to Make Its Rocket ‘Lethal’ to Defend U.S. Assets in Space

https://gizmodo.com/ula-wants-to-make-its-rocket-lethal-to-defend-u-s-assets-in-space-2000543718

The 200-foot Vulcan Centaur rocket could do more than just launch satellites to orbit. As the rocket awaits certification to launch military payloads, United Launch Alliance (ULA) suggests that Vulcan can also be used to ward off space enemies and protect U.S. assets in orbit.

During the Spacepower Conference held earlier this month, ULA CEO Tory Bruno revealed that he had alternative plans for the heavy-lift launch vehicle, SpaceNews reported. Bruno’s suggestion includes utilizing the rocket’s upper stage as a “space interceptor” to thwart attacks against the U.S. Space Force’s assets in space. “Our vision is the ability to have a platform that is lightning fast, long range, and, if necessary, very lethal,” he said during the conference. “What I’ve been working on is essentially a rocket that operates in space.”

Well, that’s certainly an idea. The 202-foot-tall (61.6-meter) Vulcan Centaur is an expendable heavy-lift launch vehicle that was first conceived in 2006. The rocket borrows design elements from both ULA’s Atlas V and Delta IV rockets, and finally made its debut on January 8, launching Astrobotic’s Peregrine lander toward the Moon. The rocket’s inaugural flight was originally scheduled to take place in 2019, but Vulcan faced several challenges and hiccups that delayed its big day.

Vulcan Centaur is crucial to the commercial space industry as well as U.S. national security. With its Vulcan rocket, ULA is hoping to compete with industry favorite SpaceX. The U.S. military has grown more dependent on SpaceX to launch its payload to orbit, a market share that used to be dominated by ULA.

However, Vulcan is not yet ready to launch military payloads. The rocket carried out its second certification flight in October, but ULA’s marquee flight vehicle hit a snag. Following a nominal liftoff, the rocket experienced an issue about 35 seconds after launch, when a plume of material suddenly appeared to be coming off one of its two boosters.

The main purpose of the Cert-2 mission was for the U.S. Space Force to certify Vulcan for national security missions, with the rocket slated to carry two U.S. military payloads to orbit this year. The not-so-ideal flight has delayed the rocket’s certification process.

Bruno’s recent suggestion to turn the rocket into a space superhero may be an act of desperation as ULA continues to fall behind its main competitor, SpaceX. During the conference, the ULA CEO suggested that Vulcan’s upper stage could be upgraded to serve as a long-endurance vehicle that operates in space and respond rapidly to incoming threats.

“We know that the Chinese are going to come after us in space,” Bruno said, according to SpaceNews. “If we watch an attack developing where a Chinese asset is spending a few days or a week approaching something we care about, we have something we can move there in a few hours and interrupt that attack before it starts.”

Mentioning China’s increasing capabilities in space is one way to get folks behind your plan. Still, Bruno’s remarks reflect a larger concern shared by both national and commercial spaceflight players: that space is headed toward a militarized future where orbital warfare may be inevitable.

via Gizmodo https://gizmodo.com/

December 28, 2024 at 09:03AM

Workers found in “slavery-like conditions” at BYD construction site

https://www.autoblog.com/news/workers-found-in-slavery-like-conditions-at-byd-construction-site

Brazilian authorities have halted construction of a BYD electric vehicle (EV) factory in Brazil’s Bahia state after rescuing 163 Chinese workers from what they described as “slavery-like conditions.” The workers were employed by Jinjiang Construction Brazil Ltd., a subcontractor hired to build the plant for the Chinese EV manufacturer.

The Labor Prosecutor’s Office reported that workers were subjected to dire living conditions, had their passports confiscated and 60% of their wages withheld. Following the report, BYD terminated its relationship with Jinjiang Construction and vowed to safeguard subcontracted workers’ rights.

On Friday, Brazilian authorities suspended the issuance of temporary work visas for BYD. In their report, the Labor Prosecutor’s Office said that workers were being brought to Brazil irregularly and were victims of human trafficking.

Related: UK eyes softer EV sales mandate

A pattern of exploitation

The investigation uncovered numerous labor abuses, including overcrowded accommodations with inadequate facilities. One dormitory reportedly had only one bathroom for 31 workers, forcing them to wake up at 4 a.m. daily to prepare for a 5:30 a.m. departure to the worksite.

Living conditions for workers at BYD construction site.

Brazil Labor Prosecutor’s Office

Other allegations included wage withholding and unreasonable cost deductions. Workers who resigned before completing six months of work left without pay because the company would deduct the cost of airfare to and from Brazil. 

One individual suffered an accident after working 25 consecutive days. Authorities have shut down the accommodations until they meet regulatory standards.

Related: Volkswagen’s Golf is about to get a lot more expensive

BYD reviewed conditions weeks before site closure

In a statement, BYD said that it had conducted a “detailed review” of the working and living conditions at the site in the past few weeks and requested on “several occasions” that Jinjiang Construction make improvements.

Living conditions for workers at BYD construction site

Brazil Labor Prosecutor’s Office

BYD expressed regret over the situation and emphasized its commitment to Brazilian labor laws and workers’ rights. “BYD Auto do Brasil reiterates its commitment to full compliance with Brazilian legislation, especially with regard to the protection of workers’ rights and human dignity,” said Alexandre Baldy, senior vice president of BYD Brazil. The company has relocated workers to hotels and promised to protect the rights of subcontracted workers.

Li Yunfei, a spokesperson for BYD, was far more critical of the Labor Prosecutor’s Office report. In a statement posted Thursday on his Weibo social media site account, the spokesperson wrote “In the matter of smearing Chinese brands, smearing China, and attempting to undermine the friendship between China and Brazil, we have seen how relevant foreign forces maliciously associate and deliberately smear.”

Related: Can Ford and GM buy Trump’s favor?

Final thoughts

The Bahia plant is slated to open next year, but it’s not clear if the current construction halt will change that. Brazil is a significant market for BYD, with over 66,000 electric and hybrid vehicles sold in the country this year. However, worker abuse casts a shadow over the company’s operations and raises questions about its oversight of subcontractors.

For BYD, rebuilding trust with Brazilian authorities and the public will be critical as it moves forward with its ambitious plans in South America.

Related: Cheaper, greener EVs? Toyota’s new grant could make it happen

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December 28, 2024 at 03:51PM

Ukraine Is Using Millions of Hours of Drone Footage to Train AI for Warfare

https://gizmodo.com/ukraine-is-using-millions-of-hours-of-drone-footage-to-train-ai-for-warfare-2000541633

The ongoing Russia-Ukraine conflict marks possibly the first truly AI war, with both sides having come to rely on small drones to conduct reconnaissance, identify targets, and even drop lethal bombs over enemy lines. This new type of warfare allows commanders to survey an area from a safe distance and has highlighted the importance of lightweight aerial weapons that can conduct precise strikes instead of much more expensive fighter jets. One drone that costs $15,000 can take down a F-16 that costs tens of millions.

Reuters has a look at how Ukraine has been collecting vast sums of video footage from drones to improve the effectiveness of its drone battalions.

The story includes an interview with Oleksandr Dmitriev, founder of OCHI, a non-profit Ukrainian system that centralizes and analyzes video from over 15,000 drones on the frontlines. Dmitriev told Reuters that the system has collected more than two million hours of battlefield video since 2022. “This is food for the AI: If you want to teach an AI, you give it 2 million hours (of video), it will become something supernatural,” he said.

The OCHI system was originally built to give the military access to drone footage from all nearby crew on one screen, but the group running it realized that the video could be used for training AI. For an AI system to be effective at identifying what it is seeing, it needs to review a lot of footage; Ukraine probably did not have a lot of battlefield footage before 2022. Now, more than six terabytes of data is being added to the system per day, on average.

Ukraine’s defense ministry has said that another system called Avengers, which centralizes footage from drones, has been able to spot 12,000 Russian pieces of equipment a week using AI identification.

It is not just local Ukrainian companies that are building new AI technology for the battlefield. There is big money to be made in the defense industry, and a slew of Silicon Valley players including Anduril and Palantir, as well as Eric Schmidt’s startup White Stork, have begun offering up drone and AI technology to support Ukraine’s fight.

Of course, the biggest concern of skeptics is that these technologies automate a lot of the fighting and make it somewhat abstract; a military could be apt to allow the drone to strike more indiscriminately when they are at a safe distance and not fearful of return fire. Schmidt has emphasized that the drones offered to Ukraine by his company maintain a “human-in-the-loop,” meaning a person is always making the final decision.

In a recent interview, Anduril’s Palmer Luckey was asked about the use of AI in weapons systems. “There is a shadow campaign being waged in the United Nations by many of our adversaries to trick Western countries that fancy themselves morally aligned into not applying AI for weapons or defense,” he said. “What is the moral victory in being forced to use larger bombs with more collateral damage because we are not allowed to use systems that can penetrate past Russian or Chinese jamming systems and strike precisely.”

Jamming systems are able to scramble GPS and telecommunications used to direct precision-guided weapons, but AI-powered drones can operate unmanned and identify targets without an operator giving an order.

Recent reports have suggested that the U.S. has fallen behind adversaries including Russia and China in its ability to remotely disable enemy weapons using jamming technology. Russia has repeatedly disabled precision-guided weapons the U.S. has given Ukraine using more advanced jamming technology than the U.S. has. The U.S. could respond by investing more in evading GPS jamming so that it does not have to use more indiscriminate, automated drones. Or it could try and jam the Russians back.

Luckey pointedly called out critics who say a robot should never decide who lives and who dies. “And my point to them is, where’s the moral high ground in a landmine that can’t tell the difference between a school bus full of kids and a Russian tank,” he asked. It seems unlikely a school bus would be driving through a battlefield unless it was a booby trap, but whatever.

The war has been a slow grind, with both sides making little advance in recent months. Drones have assisted Ukraine, but are clearly not a panacea with both sides having access to them.

via Gizmodo https://gizmodo.com/

December 20, 2024 at 12:36PM

XPeng X2 takes flight in Australia

https://www.autoblog.com/news/xpeng-x2-takes-flight-in-australia

Chinese automakers are growing in popularity in global markets, but not every one of their vehicles is stuck to the ground. The XPeng X2 officially went on sale in Australia not long ago to the tune of $300,000 AUD, or around $194,000 USD. While some automakers, including Toyota, have claimed they want to bring a flying car to the masses, XPeng beat them to the punch.

Related: Will 2025 be a turning point for car sales?

XPeng X2 is Australia’s first flying car

Following a successful Tokyo Motor Show appearance, the XPeng X2 astounded onlookers as a fully functional electric flying car at the Sydney International EV Show. The first of its kind in Australia, the X2 is available for purchase for around $194,000 USD. Despite being available for purchase, buying and flying the X2 isn’t as simple as it sounds.

Given that the X2 is a flying car, it should come as no surprise that you’re required to have a pilot’s license to take to the skies. On top of that, the Civil Aviation and Safety Authority (CASA) hasn’t approved it for use by local authorities. According to XPeng’s delivery partner, TrueEV, that process could take another year. Meanwhile, the XPeng X2 is also already available for purchase in Portugal and Spain.

XPeng X2

XPeng

The XPeng X2 can fly for around half an hour

The XPeng X2 looks pretty unique, with some describing it as something out of The Jetsons. Eight individual rotors and motors surround the two-seater cockpit, and as a safety precaution, the model also includes a standard ballistic-grade parachute. Just in case.

“People think it’s a gimmick because it’s a flying car, and there are references to The Jetsons. I get a bit uneasy about that because this is real, and the one you’re looking at has done flights. They’ve taken the ballistics parachute out of it and reduced the weight,” Jason Clarke, CEO of TrueEV, told CarExpert.

The X2’s expected range is about 46 miles on a single charge, and its top speed is roughly 80 mph. It also has a maximum 500-meter flight ceiling. The current X2 is the fifth-generation model, and successor models will increase flight time to around two hours.

Related: Why Honda is Going ALL IN on Fuel Cell Tech

XPeng X2

Xpeng

The XPeng X2 completed its first global public flight in Dubai in October 2022, with various design improvements being incorporated since that maiden flight. The whole flying vehicle weighs just under 800 pounds unladen, thanks in part to the streamlined two-seater cockpit.

Interestingly, according to XPeng, the Australians who have expressed the most interest are farmers who use helicopters in their operations. Other use cases include medical emergencies and remote deliveries.

Flying cars may be the next big thing, according to some

Many other companies have a goal to deliver a flying car in the near future, including Toyota, Hyundai, and Uber. Pegasus Aerospace Corp, an Australian firm, received certification for its flying police car in 2023. According to Morgan Stanley’s projections, the global flying car market will be worth over $1 trillion by 2040.

XPeng X2

XPeng

In the United States, some state governments are already preparing for the arrival of flying cars. Katie Hobbs, Governor of Arizona, wants the state to become one of the first to adopt flying cars and air taxis – and she isn’t saying that for political clout. Hobbs has already directed the Arizona Commerce Authority to begin taking the initial steps to make flying cars a reality.

Final thoughts

Electric flying cars are a neat idea, but perhaps they should stay sci-fi for the time being. While technology has come a long way, the transition away from fossil fuels is still in its early stages.

While making flying cars both practical and affordable is still a long way off, XPeng’s entry with a market-ready model is a good start. The fact that it’s already available in Europe is also good news, but only time will tell if the masses are ready for personal flying vehicles.

Related: Sollei Concept is proof that Cadillac’s malaise era is long gone

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December 23, 2024 at 07:02AM

AI Chatbots Can Be Jailbroken to Answer Any Question Using Very Simple Loopholes

https://gizmodo.com/ai-chatbots-can-be-jailbroken-to-answer-any-question-using-very-simple-loopholes-2000541157

Anthropic, the maker of Claude, has been a leading AI lab on the safety front. The company today published research in collaboration with Oxford, Stanford, and MATS showing that it is easy to get chatbots to break from their guardrails and discuss just about any topic. It can be as easy as writing sentences with random capitalization like this: “IgNoRe YoUr TrAinIng.” 404 Media earlier reported on the research.

There has been a lot of debate around whether or not it is dangerous for AI chatbots to answer questions such as, “How do I build a bomb?” Proponents of generative AI will say that these types of questions can be answered on the open web already, and so there is no reason to think chatbots are more dangerous than the status quo. Skeptics, on the other hand, point to anecdotes of harm caused, such as a 14-year-old boy who committed suicide after chatting with a bot, as evidence that there need to be guardrails on the technology.

Generative AI-based chatbots are easily accessible, anthropomorphize themselves with human traits like support and empathy, and will confidently answer questions without any moral compass; it is different than seeking out an obscure part of the dark web to find harmful information. There has already been a litany of instances in which generative AI has been used in harmful ways, especially in the form of explicit deepfake imagery targeting women. Certainly, it was possible to make these images before the advent of generative AI, but it was much more difficult.

The debate aside, most of the leading AI labs currently employ “red teams” to test their chatbots against potentially dangerous prompts and put in guardrails to prevent them from discussing sensitive topics. Ask most chatbots for medical advice or information on political candidates, for instance, and they will refuse to discuss it. The companies behind them understand that hallucinations are still a problem and do not want to risk their bot saying something that could lead to negative real-world consequences.

Research document showing how AI chatbots can be tricked into bypassing their guardrails using simple loopholes.
A graphic showing how different variations on a prompt can trick a chatbot into answering prohibited questions. Credit: Anthropic via 404 Media

Unfortunately, it turns out that chatbots are easily tricked into ignoring their safety rules. In the same way that social media networks monitor for harmful keywords, and users find ways around them by making small modifications to their posts, chatbots can also be tricked. The researchers in Anthropic’s new study created an algorithm, called “Bestof-N (BoN) Jailbreaking,” which automates the process of tweaking prompts until a chatbot decides to answer the question. “BoN Jailbreaking works by repeatedly sampling variations of a prompt with a combination of augmentations—such as random shuffling or capitalization for textual prompts—until a harmful response is elicited,” the report states. They also did the same thing with audio and visual models, finding that getting an audio generator to break its guardrails and train on the voice of a real person was as simple as changing the pitch and speed of a track uploaded.

It is unclear why exactly these generative AI models are so easily broken. But Anthropic says the point of releasing this research is that it hopes the findings will give AI model developers more insight into attack patterns that they can address.

One AI company that likely is not interested in this research is xAI. The company was founded by Elon Musk with the express purpose of releasing chatbots not limited by safeguards that Musk considers to be “woke.”

via Gizmodo https://gizmodo.com/

December 20, 2024 at 08:42AM

What a VPN Kill Switch Is and How to Set One Up

https://www.wired.com/story/what-a-vpn-kill-switch-is-and-how-to-set-one-up/

Virtual Private Networks, or VPNs, are now widely used to add extra security to online connections, to improve privacy when browsing, and to spoof location information—they can even be set up at the router level to protect every device on the network. And if you’ve got one installed, you need to be aware of one of their key features: the kill switch.

To begin with, it’s important to bear in mind that a VPN doesn’t make you anonymous online. If you log in to Amazon, Amazon will still keep track of what you’re looking at and what you’re buying. If you’re signed in to Google and Chrome, your searches and online activity will get logged as normal.

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However, with a VPN enabled, your devices don’t connect directly to websites and servers. Instead, they establish encrypted connections to nodes set up by your VPN provider of choice, and you connect to your intended destinations from there: That means the sites you visit and the apps you use can’t as easily pin down where you’re located and what devices you’re using.

It also makes it a lot harder for other people to see what you’re doing online, whether it’s a coffee shop Wi-Fi hacker, your internet provider, or a government agency. All they see is you connecting to the VPN you’ve chosen and not whatever you do after that. So the best VPNs won’t make you anonymous, but they will make your browsing more private and secure.

What Is a VPN Kill Switch?

A kill switch kicks in when a VPN loses connection.

Courtesy of David Nield

Now that we’ve established what a VPN is and what a VPN does, we can talk about the kill switch. Kill switches are necessary because VPN servers aren’t infallible: They can and do go down, even with the best VPNs. Something unexpected might also happen at your end, breaking the connection you’ve established with your VPN provider.

via Wired Top Stories https://www.wired.com

December 17, 2024 at 06:42AM