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China’s ultrasound brain tech race heats up

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China’s ultrasound brain tech race heats up

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When you hear “brain-computer interface,” you probably picture surgery, wires and a chip in your head. Now picture something quieter. No implant. No incision. Just sound waves directed at the brain.

That is the approach behind a new wave of ultrasound brain-computer interface companies in China. One of the newest is Gestala, founded in Chengdu with offices in Shanghai and Hong Kong. The company says it is developing technology that can stimulate and eventually study brain activity using focused ultrasound.

Yes, the same basic technology is used in medical imaging. But this time, it targets neural circuits.

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Brain imaging highlights the regions researchers study as companies explore noninvasive ultrasound brain-computer interface technology. (Kurt “CyberGuy” Knutsson)

What is an ultrasound brain computer interface?

Most brain-computer interface systems rely on electrodes that detect electrical signals from neurons. Neuralink is the most visible example. It places tiny threads inside the brain to record activity. Ultrasound works differently.

Instead of measuring electrical signals directly, it uses high-frequency sound waves. Depending on intensity and focus, those waves can:

  • Create images of internal tissue
  • Destroy abnormal tissue such as tumors
  • Modulate neural activity without open surgery.

Focused ultrasound treatments are already approved for Parkinson’s disease, uterine fibroids and certain tumors. That clinical history gives companies like Gestala a foundation to build on. However, studying or interpreting brain signals with ultrasound is far more complex than delivering targeted stimulation.

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Unlike implant-based systems such as Neuralink, ultrasound brain computer interface research focuses on stimulating the brain without surgery. (Neuralink)

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How Gestala plans to treat chronic pain with focused ultrasound

Gestala’s first product is focused on chronic pain. The company plans to target the anterior cingulate cortex, a brain region linked to the emotional experience of pain. Early pilot studies suggest that stimulating this area can reduce pain intensity for up to a week in some patients. The first-generation device will be a stationary system used in clinics. Patients would visit a hospital for treatment sessions. Later, the company plans to develop a wearable helmet designed for supervised use at home. Over time, Gestala says it wants to expand into depression, other mental health conditions, stroke rehabilitation, Alzheimer’s disease and sleep disorders. That is an ambitious roadmap. Each condition involves different brain networks and clinical hurdles.

Can ultrasound read brain activity without implants?

Like other brain tech startups, Gestala is also exploring whether ultrasound could help interpret brain activity. The long-term concept is straightforward in theory. A device could detect patterns linked to chronic pain or depression, then deliver stimulation to specific regions in response.

Unlike traditional brain implants, which capture electrical signals from limited areas, an ultrasound-based system may have the potential to access broader regions of the brain. That possibility is one reason researchers are paying attention. Still, translating that concept into reliable data is a major engineering challenge.

The global race to build noninvasive brain interfaces

China is not alone in exploring ultrasound brain-computer interface systems. Earlier this month, OpenAI announced a significant investment in Merge Labs, a startup cofounded by Sam Altman along with researchers linked to Forest Neurotech.

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Public materials from Merge Labs mention restoring lost abilities, supporting healthier brain states and deepening human connection with advanced AI. That language signals long-term ambitions. Yet experts caution that real-world applications are still years away.

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Researchers use MRI guidance to precisely target the anterior cingulate cortex with focused ultrasound during chronic pain studies. (Gestala)

The technical limits of ultrasound brain interfaces

Ultrasound faces technical limits. First, the skull weakens and distorts sound waves. That makes it harder to obtain precise signals. In research settings, detailed readouts of neural activity have required special implants that allow ultrasound to pass more clearly than bone.

Second, ultrasound measures changes in blood flow. Blood flow shifts more slowly than electrical firing in neurons. That delay may limit applications that require fast, detailed signal decoding, such as real-time speech translation. In short, stimulation is one challenge. Accurate readout is another level entirely.

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What this means to you

Right now, this technology is experimental. You are not about to buy a brain helmet at your local electronics store. Still, the direction matters. If noninvasive ultrasound devices can reduce chronic pain or support mental health treatment, more patients may consider therapy without facing brain surgery.

At the same time, devices that analyze brain states introduce new privacy questions. Brain-related data is deeply personal. Regulators, hospitals and companies will need clear rules about how that data is stored, shared and protected. Finally, the link between AI companies and brain interface startups shows how closely digital intelligence and neuroscience are becoming intertwined. That connection could reshape medicine, wellness, and even how we interact with technology.

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Kurt’s key takeaways

Brain-computer interfaces used to feel far off and experimental. Now they are a serious focus of global research and investment. China’s push to develop an ultrasound-based brain-computer interface adds momentum to a field already shaped by companies like Neuralink and new ventures backed by OpenAI. Progress is steady but measured. The potential is significant. The technical hurdles are real. What happens next will depend on whether researchers can turn promising lab results into safe, reliable treatments people can actually use.

If sound waves could one day interpret your mental state, who should decide how that information is used? Let us know by writing to us at Cyberguy.com.

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The best AirPods deals you can get right now

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The best AirPods deals you can get right now

If you know where to look, you can often score deals on Apple’s ever-expanding AirPods lineup. Both the AirPods Pro 3 and the AirPods 4 (with and without ANC) now consistently receive discounts, as do the AirPods Pro 3. And while major shopping events like Black Friday and Amazon Prime Day have delivered some of the biggest price drops, there are still good deals to be found on every model — including the recently released AirPods Max 2.

Below, we’ve rounded up the best deals currently available on each set of AirPods, including both iterations of the AirPods 4 and AirPods Max, as well as the third-gen AirPods Pro.

At the end of 2024, Apple introduced the AirPods 4, a pair of wireless earbuds available in two variations: a $129 standard model and a $179 noise-canceling model. Both versions represent significant upgrades over the third-gen AirPods, with a more comfortable design and improved audio performance. They’re also better for taking calls thanks to Apple’s Voice Isolation feature, which focuses the mics on your voice so you can be heard more clearly in noisy environments.

The $179 AirPods 4 with Active Noise Cancellation offer a surprisingly effective noise-canceling mode, a helpful transparency mode, and several other Pro-level features. The latest AirPods Pro do a better job of tuning out noise, but the AirPods 4 with ANC still do a good job of reducing sound. They also feature other perks formerly reserved for Apple’s top-of-the-line earbuds, including wireless charging and a case with a built-in speaker that allows you to easily track it down via Apple’s Find My app.

Given they’ve been out for over a year, we consistently see discounts for both iterations of the AirPods 4. During Black Friday, we saw the standard model drop to a new low of $74; however, right now, they’re only down to $119 ($10 off) at Amazon, Walmart, and B&H Photo. The AirPods 4 with ANC, meanwhile, are on sale for $154.99 ($24 off) at Amazon, Walmart, and Costco (for members), which is significantly more than their recent low of $99.

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The best AirPods Pro 3 deals

At its “Awe Dropping” event in September, Apple introduced the AirPods Pro 3. In addition to improved ANC and sound, the third-gen earbuds include a built-in heart rate sensor that syncs with the iPhone Fitness app, allowing you to track your pulse and calories burned across more than 50 workout types. They’re also more comfortable and secure than their predecessor, thanks to a redesigned, angled fit and five ear tip sizes — including a new XXS option. Additionally, they carry a more robust IP57 rating and support Apple’s new live translation feature, which, in our testing, generally conveys the gist well but still can’t beat a human interpreter.

Given how recently they launched, we’ve been surprised by how often the AirPods Pro 3 have been discounted. In fact, last month we saw them drop to $199 ($50 off), which is $15 shy of their all-time low. Unfortunately, while they’re still on sale, they’ve since increased in price to $224 ($25 off) at retailers like Amazon and Walmart.

The best AirPods Max deals

The AirPods Max aren’t the iconic in-ears that have become synonymous with the AirPods name. Both the first-gen Max and the newer AirPods Max 2 are large and luxurious, comprised of aluminum, steel, and mesh fabric that remains comfortable during extended listening sessions. The original pair delivered clear, expansive sound, great noise cancellation, and lossless audio over USB-C; however, with the Max 2, Apple built upon that excellent foundation with improved ANC and a built-in amplifier for better sound. They also feature Apple’s newer H2 chip, enabling AI-powered live translation, adaptive audio, and other features once reserved for the AirPods Pro line. The over-ears aren’t the best noise-canceling headphones for everyone — blame the sticker price — but for iPhone users, they’re hard to beat.

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The AirPods Max 2 retail for $549 — the same price as the original model — but you can currently save $20 on both the black and white versions at Amazon and Costco (if you’re a member), which is the first discount we’ve seen on the recently released headphones. If you’re okay with picking up the last-gen model, the original AirPods Max with USB-C are on sale in select colors for $399.99 ($150 off) at Woot through April 3rd, matching their best price to date. They’re also available in a wider range of hues at Amazon, Walmart, Target, and other retailers for $449.99 ($100 off), which is still a hefty discount.

Update, April 2nd: Updated to reflect current pricing and availability, as well as the recent release of the AirPods Max 2.

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SSA impersonation scams are getting more personal

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SSA impersonation scams are getting more personal

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The Social Security Administration and its Office of Inspector General issued warnings during their March 2026 “Slam the Scam” campaign, citing the continued volume of impersonation fraud tied to Social Security. Federal data shows these scams remain widespread; more than 330,000 government impersonation complaints were reported to the FTC in 2025. That’s a 25% increase from the year before.

Losses tied to these scams reach into the hundreds of millions of dollars each year, placing them among the most relentless forms of consumer fraud.

These scam messages often resemble official SSA communication, referencing issues with a Social Security number or account records.

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Scammers design messages to look like official Social Security alerts, often using familiar details to gain your trust.  (Kurt “CyberGuy” Knutsson)

How do these SSA scams work?

Scammers are using bits of information that feel familiar. A message may include your name, part of your SSN, or even a reference to benefits. Caller IDs can seem to match government offices, and emails or texts may follow the same format used in official SSA communication.

Much of this information comes from data that has already been part of data breaches. When those details show up in a message, the claim sounds consistent with what you already know about your own records.

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Earlier this year, there were reports of scam emails that looked like official Social Security messages, asking people to download their Social Security statement through links that led to fraudulent sites. These emails are not from the SSA and will steal your personal information and likely hack your phone or computer once you allow access.

A message that lines up with recognizable information is less likely to be ignored. It moves the conversation forward faster and brings your guard down.

What scammers want when they contact you

At the point of contact, they are trying to get one of two things:

1) Your personal identifiers

They ask for this information under the guise of verifying your identity or resolving an issue with your account.

2) Your money

  • Direct payments (wire transfer, gift cards, crypto)
  • Access to bank or retirement accounts
  • Instructions to “move money to protect it”

This usually comes after they earn your trust or create urgency.

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Once scammers have your information, they can pass identity checks and open or access financial accounts in your name. (Kurt “CyberGuy” Knutsson)

What scammers do with the information

Once scammers have your information, they move quickly to turn it into access, money and long-term identity fraud.

They use it to get past identity checks

Your SSN, date of birth, and address are often enough to get through basic verification systems. That allows scammers to present themselves as you when applying for credit or contacting financial institutions.

They open or access financial accounts

Once through those checks, they can apply for credit in your name, leading to new accounts, hard inquiries, and balances showing up on your credit report. If login details or verification codes were shared, existing accounts can also be accessed.

They go after benefit-related accounts

The same information can be used to access or make changes to Social Security-related records. This can include attempts to redirect payments by updating direct deposit details.

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They continue using the data

Any stolen information can be reused or combined with made-up details to create additional identities, which can then be used to open more accounts over time.

What the SSA will not do

The SSA does not contact individuals out of the blue to request personal information.

It does not ask for full SSNs, bank details, or login credentials over phone calls, text messages, or email.

It also does not demand payment to resolve issues tied to your SSN or benefits.

Requests to transfer money, purchase gift cards, or move funds to keep your accounts safe are not part of any SSA process.

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Threats are another warning sign. The agency does not suspend SSNs or issue arrest warnings.

Legitimate communication from the SSA happens through mailed notices or through your My Social Security account. 

The agency states it may send emails in limited cases, such as account notifications, but these do not ask for personal information.  

SSA emails will direct you to log in through SSA.gov rather than asking you to click on links or download attachments.

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Stolen data can also be used to target your Social Security benefits, including attempts to redirect payments. (Kurt “CyberGuy” Knutsson)

What to do if you receive or respond to one of these messages

If you get a message claiming to be from the SSA, don’t respond and don’t click any links. Don’t call the number in the message.

  • Instead, go to SSA.gov or use a verified phone number to check if there’s actually an issue with your account.
  • If you have already shared information, stop contact immediately and take note of what you shared. You can report the scam to the SSA Office of Inspector General at oig.ssa.gov/report
  • You can also file a report at IdentityTheft.gov, which helps create a record.
  • To limit further misuse, place a fraud alert or credit freeze with Equifax, Experian, and TransUnion, and check your credit reports for any unfamiliar activity.

How to protect yourself

Stolen information is not always used right away. In many cases, identity theft like this is not apparent until it shows up on a credit report or a lender flags it. Monitoring tools can track this type of activity as it happens. Alerts tied to changes in your credit file or exposed personal data can show you where your information is being used.

Many identity protection services monitor credit across the three major bureaus and scan for exposed personal data, including Social Security numbers. They can alert you to new inquiries or accounts and offer support if something looks suspicious.

Some services also scan dark web marketplaces and data leaks to see if your information is being shared or sold. Starting with a free identity breach scan can help you understand your risk and take action early.

If identity theft does happen, these services often provide fraud resolution support. This can include help to contact creditors, placing fraud alerts, disputing unauthorized accounts and preparing documentation to recover your identity. Some plans also include identity theft insurance to help cover eligible recovery costs.

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No service can prevent every type of identity theft. However, early alerts and guided support can make a major difference in how quickly you catch and recover from fraud.

How to check if your personal information was exposed

If you are unsure whether your information has already been exposed, take action now. Start with a free identity breach scan to see if your data appears in known leaks. Catching it early gives you more control and helps limit the damage before it spreads.

See my tips and best picks on Best Identity Theft Protection at Cyberguy.com

Kurt’s key takeaways

SSA impersonation scams are not new, but they are getting more convincing. When a message includes details that match your life, it feels legitimate. That is exactly what scammers are counting on. The key is to slow down and verify everything through official channels. The SSA is not going to text you out of the blue, demand money or ask for sensitive details. If a message pushes you to act quickly, that is your signal to pause. Staying ahead of these scams comes down to awareness and simple habits. Verify first. Protect your data. And assume that any unexpected message about your Social Security number deserves a second look.

Have you ever received a message that looked like it came from Social Security, and what made you trust it or question it? Let us know by writing to us at Cyberguy.com

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Trump’s birthright citizenship ban may fail — but the administration already got too far

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Trump’s birthright citizenship ban may fail — but the administration already got too far

On Wednesday morning, the Supreme Court heard arguments in Trump v. Barbara, a case challenging President Donald Trump’s 2025 executive order banning birthright citizenship. Justices seemed skeptical of the administration’s argument, but by taking up birthright citizenship at all, they showed how much ground nativists have gained since Trump’s first term. The 14th Amendment is quite clear: “all persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.” Trump seeks to overturn this and create a new, effectively stateless American underclass, and he’s gotten alarmingly far.

Hours after being sworn back into office for his second term, Trump issued an executive order titled “Protecting the Meaning and Value of American Citizenship.” Under the order, children born to undocumented mothers — or to women in the country on non-immigrant visas — would no longer be citizens upon birth, unless the children’s fathers were citizens or permanent residents. The order’s provisions would take effect 30 days after it was issued. It was immediately challenged in court and several federal injunctions prevented its implementation, meaning birthright citizenship remains the law of the land for now.

Trump’s efforts hinge on the meaning of a specific clause: “subject to the jurisdiction thereof.” The administration contends that noncitizens and those who don’t have permanent residency are not subject to the jurisdiction of the United States, since they’re actually loyal to a foreign power. This interpretation would reverse not only centuries of US law but also precedent set by English common law, leaving hundreds of thousands of children without status or stateless upon birth. Karen Tumlin, the director of the Justice Action Center, called the case a “canary in the coalmine for our democracy”: if Trump can end birthright citizenship with the stroke of a pen, then no constitutional protection is safe.

All but the most conservative justices seemed unconvinced. Their questions largely focused on two landmark decisions. One was Dred Scott v. Sandford, the 1857 case in which the court decided that enslaved people were not citizens — which the 14th Amendment was ratified partly to overturn. The other was United States v. Wong Kim Ark, an 1898 case in which the court ruled that, despite the Chinese Exclusion Act, the American-born children of Chinese nationals were indeed US citizens.

After Justice Clarence Thomas asked Sauer how the citizenship clause responds to Dred Scott, Sauer acknowledged that the 1857 decision “imposed one of the worst injustices in the history of this court.” But he argued that Congress specifically ratified the 14th Amendment to grant citizenship to “newly freed slaves and their children” who, according to Sauer, had “a relationship of domicile” to the United States and no “relationship to any foreign power.”

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Nineteenth-century legislators, Sauer argued, couldn’t have foreseen the problem of birth tourism. “There are 500 — 500 — birth tourism companies in the People’s Republic of China whose business is to bring people here to give birth and return to that nation,” Sauer said. The current interpretation of birthright citizenship “could not possibly have been approved by the 19th century framers of this amendment,” he said. “We’re in a new world,” he continued, “where 8 billion people are one plane ride away from having a child who’s a US citizen.”

Justice Neil Gorsuch, who was questioning Sauer, appeared unswayed. “It’s a new world,” he agreed, but “it’s the same Constitution.”

“It’s a new world,” Gorsuch said, but “it’s the same Constitution”

Chief Justice John Roberts called Sauer’s examples of existing exceptions — including children of ambassadors or enemies during a hostile invasion — “very quirky” and not necessarily comparable to“a whole class of illegal aliens who are here in the country.” Justice Elena Kagan noted that most of Sauer’s brief focused on people who are temporarily in the country on visas — but Trump’s executive order was clearly intended to restrict immigration, and the president has said so himself.

In 2019, Trump called birthright citizenship a “magnet for illegal immigration.” Last year, presidential adviser Stephen Miller said the US-born children of immigrants are just as much of a problem as the immigrants themselves. “With a lot of these immigrant groups, not only is the first generation unsuccessful,” Miller said in a Fox News interview, citing the Somali-American community, which the administration would soon target in Minneapolis, as an example. “You see persistent issues in every subsequent generation. So you see consistent high rates of welfare use, consistent high rates of criminal activity, consistent failures to assimilate.”

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The administration has sought to restrict legal immigration in all its forms: it implemented a steep fee for H-1B work visas, has signaled it may end a work program for international students, and enacted a travel ban on several countries that is even affecting World Cup players. The operation is barefacedly racist. The president famously complained about “all these people from shithole countries” who migrate and expressed his desire to have “more people from Norway.” Last year, he cut the refugee resettlement cap to just 7,500 and prioritized the resettlement of white South Africans. The Department of Homeland Security has linked the “homeland” to a decidedly white vision of Manifest Destiny that, like debates about birthright citizenship, harkens back to the nineteenth century.

Experts are broadly in agreement that most justices weren’t convinced by the administration’s argument, but it’s not clear exactly how the court will rule.

If the court did hand Trump an unexpected victory, a series of grim questions would immediately come into play — starting with when the change kicks in. The order was supposed to be implemented on February 19, 2025, thirty days after Trump signed the order, and would have gone into effect if not for a number of federal injunctions. “If the court sides with Trump, it will have to decide on a date on which to begin applying the president’s interpretation of the 14th amendment,” César Cuauhtémoc García Hernández, a professor of civil rights and civil liberties at the Ohio State University College of Law, told The Verge. “Anyone born on or after that date and described in Trump’s order would be treated as a migrant rather than a U.S. citizen.”

Sauer asked the court to apply Trump’s executive order “proactively” and not retroactively, and backdating the change to 2025 would pose a number of problems, calling the citizenship of millions of children into question.

The Trump administration is trying to narrow who counts as an American while simultaneously pushing for policies that prevent noncitizens from participating in public life. The administration has tried to prohibit states from offering in-state tuition to undocumented immigrants who live there, revoked accreditation for training centers that work with noncitizen truckers, and has broadly sought to turn America into a “papers, please” country.

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Trump was in the audience during Wednesday’s arguments, making him the first sitting president to attend oral arguments before the Supreme Court. His presence may have intended to intimidate skeptical justices into taking his side. Norman Wong, a direct descendant of Wong Kim Ark, was also outside the courthouse, according to the New York Times. Wong and his family embody the stakes of this case, and he had a message for the justices: “They will be shamed for history if they get this wrong.”

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