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Change Healthcare ransomware attack exposes personal health information of over 100 million

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Change Healthcare ransomware attack exposes personal health information of over 100 million

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Over the past few months, we’ve seen a wave of data breaches affecting millions of people, from health care giants to government contractors and more. This latest incident is yet another in a long line of alarming breaches. Change Healthcare experienced a major data breach in February this year, causing widespread disruption across the U.S. health care sector. At the time, the company did not specify how many people were affected by the breach but hinted that it might impact well more than one-third of the U.S. population, marking one of the largest known digital thefts of medical records to date.

The owner of Change Healthcare, UnitedHealth Group (UHG), has now confirmed for the first time that more than 100 million people had their personal information and health care data stolen in what was a ransomware attack.

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UnitedHealth Group confirmed for the first time that more than 100 million people had their personal information and health care data stolen. (Kurt “CyberGuy” Knutsson)

Timeline of the Change Healthcare cyberattack

The Change Healthcare cyberattack happened in February, with news going public on Feb. 21. To contain the breach, the company took its systems offline, which led to immediate disruptions across the U.S. health care sector that relies on Change’s services for claims processing, payments and data sharing. UHG CEO Andrew Witty told Congress in May that “maybe a third” of Americans’ health data was exposed in the attack.

A month later, Change Healthcare sent out a data breach notice confirming that the February ransomware attack exposed a “substantial quantity of data” affecting many Americans. UnitedHealth Group started notifying impacted individuals in late July, with notifications continuing through October, and the final tally of those affected was released this month.

The U.S. Department of Health and Human Services Office for Civil Rights (OCR) data breach portal updated the total number of impacted people to 100 million: “On October 22, 2024, Change Healthcare notified OCR that approximately 100 million individual notices have been sent regarding this breach,” reads an updated FAQ on the OCR website.

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The February ransomware attack exposed a “substantial quantity of data” affecting many Americans. (Kurt “CyberGuy” Knutsson)

THE HIDDEN COSTS OF FREE APPS: YOUR PERSONAL INFORMATION

What data got stolen?

There’s roughly a 30% chance your personal data was compromised in this breach. Change Healthcare is one of the largest handlers of health, medical data and patient records, and in 2022 it merged with U.S. health care provider Optum as part of a deal with UHG, bringing the two giants together under UHG’s umbrella.

This merger gave Optum – already managing physician groups and providing tech and data to insurers and health care services – broader access to the patient records handled by Change. Overall, UHG offers benefit plans to more than 53 million customers in the U.S. and another 5 million globally, while Optum serves about 103 million U.S. customers.

The stolen data varies by individual but includes personal information such as names, addresses, dates of birth, phone numbers, email addresses and government ID numbers, including Social Security, driver’s license and passport numbers. On top of that, hackers may also have accessed health data, including diagnoses, medications, test results, imaging, care and treatment plans and health insurance information. Financial and banking details found in claims and payment data are also reportedly compromised.

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Change Healthcare is one of the largest handlers of health, medical data and patient records. (Kurt “CyberGuy” Knutsson)

FROM TIKTOK TO TROUBLE: HOW YOUR ONLINE DATA CAN BE WEAPONIZED AGAINST YOU

What caused the data breach?

The Change Healthcare data breach was caused by a ransomware attack, a type of malware attack that blocks access to the victim’s personal data unless a “ransom” is paid. UHG said ALPHV/BlackCat was behind the attack, a Russian-speaking ransomware and extortion gang that later took credit for the cyberattack.

However, the attack was made possible because Change Healthcare wasn’t smart enough to protect its customers’ data with multifactor authentication. The company admitted this during a House hearing into the cyberattack in April. This raises an important question: how could a company that has billions of dollars in revenue and stores data for over 100 million Americans fail at basic cybersecurity?

UHG paid a ransom to get a decryptor and for the hackers to delete the stolen data. The ransom was said to be around $22 million and was supposed to be split between the affiliate and the ransomware operation. However, BlackCat kept it all for themselves and pulled an exit scam.

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This complicated things for UHG because the affiliate claimed they still had the company’s data. They later joined forces with a new group called RansomHub, leaking some of the stolen data and extorting a second ransom from UHG.

6 ways to protect yourself from Change Healthcare data breach

1) Remove your personal information from the internet: While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice. They aren’t cheap and neither is your privacy. These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. Check out my top picks for data removal services here.

2) Be wary of mailbox communications: Bad actors may also try to scam you through snail mail. The data leak gives them access to your address. They may impersonate people or brands you know and use themes that require urgent attention, such as missed deliveries, account suspensions and security alerts.

3) Be cautious of phishing attempts: Be vigilant about emails, phone calls or messages from unknown sources asking for personal information. Avoid clicking on suspicious links or providing sensitive details unless you can verify the legitimacy of the request. The best way to protect yourself from clicking malicious links that install malware is to have strong antivirus protection installed on all your devices. Get my picks for the best 2024 antivirus protection winners for your Windows, Mac, Android and iOS devices.

4) Monitor your accounts: Breaches of this magnitude will make it a necessity for you to start routinely reviewing your bank accounts, credit card statements and other financial accounts for any unauthorized activity. If you notice any suspicious transactions, report them immediately to your bank or credit card company. 

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5) Recognizing and reporting a Social Security scam: If there is a problem with a person’s Social Security number or record, Social Security will typically mail a letter. You can learn more about recognizing Social Security-related scams, including how to report a scam quickly and easily online to Social Security’s Office of the Inspector General, by reading more at www.ssa.gov/scams.

6) Invest in identity theft protection: Data breaches happen every day and most never make the headlines, but with an identity theft protection service, you’ll be notified if and when you are affected. Identity theft companies can monitor personal information like your Social Security number, phone number and email address and alert you if it is being sold on the dark web or being used to open an account. They can also assist you in freezing your bank and credit card accounts to prevent further unauthorized use by criminals. 

One of the best parts of using some services is that they might include identity theft insurance of up to $1 million to cover losses and legal fees and a white-glove fraud resolution team where a U.S.-based case manager helps you recover any lossesSee my tips and best picks on how to protect yourself from identity theft.

Kurt’s key takeaway

In just 2024, with over two months still to go, we’ve witnessed countless data breaches affecting millions of Americans. This highlights how valuable your data is and how little some companies are doing to protect it. Big firms with massive revenues are struggling to implement even the most basic cybersecurity measures, practically inviting cybercriminals to hack their systems. Change Healthcare fell into this trap by not implementing two-factor authentication, leaving everything from your financial details to health data in the hands of criminals.

Do you think these companies are doing enough to protect your data and is the government doing enough to catch those behind cyberattacks? Let us know by writing us at Cyberguy.com/Contact.

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For more of my tech tips and security alerts, subscribe to my free CyberGuy Report Newsletter by heading to Cyberguy.com/Newsletter.

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Copyright 2024 CyberGuy.com. All rights reserved.

Technology

Sony’s XM5 headphones and the latest Kindle round out this week’s best deals

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Sony’s XM5 headphones and the latest Kindle round out this week’s best deals

If you’re feeling the stress of having procrastinated on your holiday shopping — and you missed out during Black Friday and Cyber Monday — we’ve got you. We’ve found a variety of gadgets on sale that make for great gifts, many of which will ship in time for the holidays. One of the standouts is the current promo on Sony’s noise-canceling WH-1000XM5 headphones, which are on sale with a free pair of wireless earbuds. Other deals you may have missed include steep discounts on Amazon’s latest entry-level Kindle and the new Echo Dot Max.

Sony’s last-gen WH-1000XM5 have consistently impressed us with their audio quality, active noise cancellation, and comfort. And right now, Amazon is offering them with a free pair of Sony’s WF-C700N earbuds for $248 ($152 off). The headphones have an updated design that includes a thinner headband, more memory foam in the ear pads, and repositioned mics that reduce wind noise when taking calls. These changes didn’t add much weight, and the headphones still get 30 hours of playtime with ANC enabled.

The XM5 sounded “more refined, detailed, and spacious” in our tests, but we noticed less oomph when listening to EDM or hip-hop tracks with a lot of bass. The headphones have eight microphones, four of which are for voice, and their excellent noise reduction on calls was immediately noticeable, even in louder environments. The $89.99 WF-C700N, meanwhile, are a midrange pair of noise-canceling earbuds with an IPX4 rating, up to seven and a half hours of battery life (with ANC enabled), and a slim design.

Amazon’s 11th-gen Kindle is our favorite budget-friendly e-reader, and you can pick up the ad-supported version for $89.99 ($20 off) at Amazon, Best Buy, and Target. The entry-level ebook reader features a six-inch 300ppi E Ink display that won’t show glare from the sun like your phone or tablet. It has enough storage space to hold thousands of books, or dozens of audiobooks from Audible, the latter of which you can play via Bluetooth headphones or speakers.

The Kindle’s built-in battery lasts up to six weeks, depending on how long you read per day and how reliant you are on its backlight, and recharges over USB-C. It has the same screen resolution and storage as the step-up Kindle Paperwhite, but it’s not waterproof, which may matter if you like to read at the beach or in the bath.

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Amazon’s last-minute “Super Saturday” sale is underway, though, we’d argue some of the better deals are actually some the lingering discounts we’re seeing on Amazon’s own devices, many of which have been effect for several weeks. Right now, for instance, you can grab the new Echo Dot Max at Amazon, Best Buy, and Target for $79.99 ($20 off), which is the best price we’ve seen on the smart speaker since it launched.

Despite the name, the Dot Max is less of a follow up to the Echo Dot as it is the fourth-gen Echo from 2020. It’s got a compact knit fabric design, simpler controls, a better processor, and more smart home sensors and radios than prior models (it offers support for Matter, Thread, and Zigbee protocols). It still sounds great for its size, though, and like prior models, it can function as an Wi-Fi extender if you’re looking buoy a Eero mesh network. It’s also one of the first devices to offer Amazon’s AI-powered Alexa Plus out of the box, which, while still very much a work in progress, is a step in the right direction.

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Data breach exposes 400,000 bank customers’ info

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Data breach exposes 400,000 bank customers’ info

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A major data breach tied to U.S. fintech firm Marquis is rippling through banks, credit unions and their customers. Hackers broke into Marquis systems by exploiting a known but unpatched vulnerability in a SonicWall firewall, gaining access to deeply sensitive consumer data.

At least 400,000 people are confirmed to be affected so far across multiple states. Texas has been hit the hardest with more than 354,000 residents affected. That number is expected to rise as additional breach notifications are filed.

Marquis operates as a marketing and compliance provider for financial institutions. The company says it serves more than 700 banks and credit unions nationwide. That role gives Marquis access to centralized pools of customer data, which also makes it a high-value target.

PASSWORD MANAGER FINED AFTER MAJOR DATA BREACH

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A major data breach tied to fintech firm Marquis exposed sensitive banking and identity data for hundreds of thousands of people. (Kurt “CyberGuy” Knutsson)

What information was stolen in the Marquis cyberattack

According to legally required disclosures filed in Texas, Maine, Iowa, Massachusetts and New Hampshire, hackers accessed a wide range of personal and financial data. Stolen information includes customer names, dates of birth, postal addresses, Social Security numbers and bank account, debit and credit card numbers. The breach dates back to Aug. 14, when attackers gained access through the SonicWall firewall vulnerability. Marquis later confirmed the incident was a ransomware attack.

While Marquis did not publicly name the attackers, the campaign has been widely linked to the Akira ransomware gang. Akira has previously targeted organizations running SonicWall appliances during large-scale exploitation waves. This was not a routine credential leak.

We reached out to Marquis for comment, and a company spokesperson provided CyberGuy with the following statement:

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“In August, Marquis Marketing Services experienced a data security incident. Upon discovery, we immediately enacted our response protocols and proactively took the affected systems offline to protect our data and our customers’ information. We engaged leading third-party cybersecurity experts to conduct a comprehensive investigation and notified law enforcement.

“The incident was quickly contained, and our investigation was recently completed. It was determined that an unauthorized third party accessed certain non-public information within our network. However, there is no evidence indicating that any personal information has been used for identity theft or financial fraud. We have notified potentially affected individuals.  

“We know our customers place great trust in us, and at Marquis, we take that responsibility seriously by making the protection of their information our highest priority. We are extremely appreciative of the cooperation, understanding, and support of our employees and customers during this time.”

HOW TO STOP IMPOSTOR BANK SCAMS BEFORE THEY DRAIN YOUR WALLET 

Why the Marquis data breach creates long-term identity risk

When a data breach exposes your full identity, the danger does not disappear after the news cycle ends. Unlike a stolen password, this kind of information cannot be changed, which means the risk can stick around for a long time.

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“With a typical credential leak, you reset passwords, rotate tokens and move on,” Ricardo Amper, CEO and Founder of Incode Technologies, a digital identity verification company, tells CyberGuy. “But core identity data is static. You cannot meaningfully change your date of birth or SSN, and once those are exposed, they can circulate on criminal markets for years. The breach is a moment in time, but the exposure it creates can follow people for the rest of their financial lives.”

That is why identity breaches are so dangerous. Criminals can reuse the same stolen data years later to open new accounts, build fake identities or run highly targeted scams that feel personal and convincing. Many attackers now combine this data with AI tools to scale their efforts. As a result, phishing emails, phone calls and even voice impersonations are harder to spot when they reference real details about your bank or account history.

The most likely scams after identity data is stolen

When criminals obtain verified identity data, fraud becomes targeted rather than opportunistic. 

“Once criminals get their hands on rich, verified identity data, fraud stops being a guessing game and becomes a targeted execution,” Amper said. 

The first major threat is account takeover. With enough personal details, attackers can bypass knowledge-based checks, reset passwords, change contact information and abuse accounts in ways that often look legitimate. The second risk is new account fraud. This includes credit cards, loans, buy now pay later services and even new bank accounts. High-quality data helps these applications pass automated systems and manual reviews.

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The fastest-growing threat is synthetic identity fraud. Real data, like a Social Security number, is blended with fabricated details to create a new identity that matures over time before a large financial bust. 

“These attacks are hard to catch early because the data being presented is accurate and often reused across multiple institutions,” Amper noted. “If your defenses can’t reliably tell a real human from an AI-generated impersonation, you are starting every decision from a position of disadvantage,” he added.

Why unpatched firewall flaws pose such a serious threat

Ransomware groups like Akira increasingly focus on widely deployed infrastructure to maximize impact. Firewalls sit at the boundary of trusted networks. When one is compromised, everything behind it becomes reachable. 

“What we’re seeing with groups like Akira is a focus on maximizing impact by targeting widely used infrastructure. The strategy remains the same: Find a single weak point that gives access to many downstream victims at once,” Amper said. 

This approach exposes a persistent blind spot in traditional cybersecurity thinking. Many organizations still assume traffic passing through a firewall is safe. 

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“When the perimeter device itself is the entry point, static defenses and outdated controls simply can’t keep up,” Amper explained.

Hackers accessed names, Social Security numbers and bank details by exploiting an unpatched firewall vulnerability.  (Kurt “CyberGuy” Knutsson)

How long affected consumers should assume risk remains high

Identity data does not expire. Social Security numbers and birth dates stay the same for life. 

“When core identity data reaches criminal markets, the risk does not fade quickly,” Amper emphasized. “Fraud rings treat stolen identity data like inventory. They hold it, bundle it, resell it and combine it with information from new breaches.” 

Warning signs of misuse can be subtle. These include credit inquiries you did not authorize, account recovery alerts from unfamiliar services or phone calls that convincingly mimic a bank’s verification process using deepfake voice tools. 

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“The most damaging fraud often starts long after the breach is no longer in the news,” Amper added.

The overlooked impact of identity theft

Financial losses are only part of the damage. Victims often experience a lasting erosion of trust. 

Amper says, “The most overlooked consequence is the psychological toll of knowing that you can no longer trust who is contacting you. Deepfake impersonation turns every phone call, video message or urgent request into a potential attack.”

Ways to stay safe after the Marquis data breach

When a breach exposes Social Security numbers, bank details and birth dates, the risk does not end with a password reset. These steps focus on protections that reduce long-term identity misuse and help you detect fraud early.

1) Freeze your credit with all major bureaus

A credit freeze prevents criminals from opening new accounts in your name using stolen identity data. This is critical after the Marquis breach, where full identity profiles were exposed. Freezing credit does not affect your score and can be lifted temporarily when needed. Place a free credit freeze with Equifax, Experian and TransUnion online or by phone. Each bureau must be contacted separately. Once frozen, new credit cannot be opened unless you temporarily lift or remove the freeze using a PIN or account login.

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2) Place a fraud alert on your credit file

A fraud alert tells lenders to take extra steps to verify your identity before approving credit. It adds protection if you are not ready to freeze credit everywhere or want an extra layer on top of a freeze. Fraud alerts last for one year and can be renewed. You only need to contact one credit bureau to place a fraud alert. Equifax, Experian or TransUnion will notify the others for you. Fraud alerts are free and last for one year.

3) Enable transaction and account alerts

Turn on alerts for withdrawal, purchase, login attempts and password changes across all financial accounts. Real-time alerts can help you catch account takeovers or unauthorized activity before serious damage occurs.

4) Review bank statements and credit reports regularly

Check statements and credit reports often, even months or years after the breach. Identity data from incidents like this is frequently reused later for delayed fraud. Watch for unfamiliar accounts, hard inquiries or small test charges.

5) Use phishing-resistant two-factor authentication

Text message codes can be intercepted or socially engineered. Where possible, switch to app-based or hardware-backed two-factor authentication. These options are harder for attackers to bypass, even when they know your personal details.

6) Rely on strong device-based biometrics where available

Biometrics tied to your physical device add a layer that criminals cannot easily replicate. Face and fingerprint authentication help block account takeovers driven by stolen identity data or AI-powered impersonation.

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7) Use strong antivirus software

Reputable antivirus software helps detect malicious links, fake login pages and follow-up attacks that target breach victims. This adds protection against phishing and ransomware tied to identity-based scams.

The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe.

Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com.

THIRD-PARTY BREACH EXPOSES CHATGPT ACCOUNT DETAILS

8) Consider a data removal service

Data brokers collect and resell personal information that can be combined with breach data to fuel targeted fraud. A data removal service reduces how much of your personal information is publicly available and lowers your exposure over time.

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While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice. They aren’t cheap, and neither is your privacy. These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet. By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you.

Experts warn this type of identity exposure can fuel fraud and scams for years after the breach is discovered. (Kurt ‘CyberGuy’ Knutsson)

Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com.

Get a free scan to find out if your personal information is already out on the web: Cyberguy.com.

9) Add an identity theft protection service

Identity theft services monitor credit files, dark web markets and account activity for signs that your stolen data is being misused. Many also offer recovery assistance in the event of fraud, which can save time and stress when dealing with banks, credit bureaus and government agencies. This monitoring is especially useful after breaches like Marquis, where identity data can resurface long after the initial incident.

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See my tips and best picks on how to protect yourself from identity theft at Cyberguy.com.

10) Verify unexpected outreach through official channels

Be cautious of urgent calls, emails or texts that reference real banking or personal details. Scammers now use accurate breach data to sound legitimate. Hang up and contact your bank directly using the number on your card or official website.

11) Lock down tax and government accounts

Create or secure online accounts with the IRS, Social Security Administration and your state tax agency. Enable strong authentication and monitor for unexpected notices. Stolen identity data is often used for tax refund fraud or benefit scams long after a breach.

Kurt’s key takeaways 

The Marquis data breach highlights how dangerous unpatched infrastructure vulnerabilities have become for the financial sector. When a single vendor holds data for hundreds of institutions, the fallout spreads quickly. For you, identity protection is no longer a one-time response. It is an ongoing necessity that can last years beyond the initial breach.

What questions do you still have about protecting your identity after a major data breach like this one? Let us know by writing to us at Cyberguy.com.

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Copyright 2025 CyberGuy.com.  All rights reserved.

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You can buy your Xbox Ally an official pair of anti-drift joysticks

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You can buy your Xbox Ally an official pair of anti-drift joysticks

Even at $1,000, the Xbox Ally X handheld didn’t ship with magnetic drift-resistant joysticks, and neither did the $600 model. But for an extra $20 at Amazon, you can change that today — with officially Asus-approved and sanctioned TMR joysticks from Gulikit, the company that’s made a name for itself by supplying aftermarket drift-resistant sticks.

The company says it worked with Xbox Ally manufacturer Asus to create these sticks, that they’ll be “automatically recognized” when you swap them in, and that you can use the handheld’s built-in Armoury Crate app to calibrate them afterwards.

And while I haven’t tried these ones (I do have a pair in my Switch), I can confirm it’s pretty easy to pop open the Xbox Ally to install. Just loosen the Philips-head screws, poke in a guitar pick pry tool to create a small gap, and pull a little harder than you think you need to pop open the clips. The joystick modules are right underneath. There’s nothing blocking you — just pop a ribbon cable and undo their three screws.

Here’s the company’s walkthrough in case you want to see for yourself — though I do not recommend taking sharp tweezers to ribbon cables when your fingernails can do that job safer and easier. (I may have broken a few ribbon cables in my life.)

When we’re talking about TMR or the older and slightly less power-efficient Hall effect joystick technology, I usually write “drift-resistant” instead of “drift-free” because you may find your center point drifting over time — but the beauty of magnetic is you just have to recalibrate! Unlike the potentiometer joysticks that ship with Nintendo, Sony PlayStation, and Microsoft Xbox controllers, you’re not scraping away material that’ll lead to permanent drift as you use the magnetic versions.

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Gulikit’s new Xbox Ally sticks are $20 in the US today, and should also be available in the UK for £20, and in Italy, France, and Spain for €22, this January.

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