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What is quantum internet? Why it could change the internet forever

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What is quantum internet? Why it could change the internet forever

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Imagine an internet where your data can’t be stolen, your messages are completely private and online security is unbreakable. That’s the promise of quantum internet: a futuristic technology that could completely change how we connect online.

Here’s a look at what quantum internet is, how it works and why it might be the future of online security.

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Illustration of future tech (Kurt “CyberGuy” Knutsson)

What is quantum internet?

Quantum internet is a next-generation network that uses the power of physics to send data in a way that’s ultra-secure and computationally infeasible to hack. Quantum internet, quantum networks and quantum communication are all connected but have different roles. 

Quantum internet refers to the entire system that allows ultra-secure communication. Quantum networks are the infrastructure that connect quantum devices. Quantum communication is the actual exchange of information over these networks. Unlike today’s internet, which sends data as either a 0 or a 1, quantum internet relies on quantum bits, or qubits, which can exist as both 0 and 1 at the same time.

This results in an encryption method that is nearly impossible to break, making it one of the most secure ways to communicate. What makes quantum internet even safer is a phenomenon called entanglement. When qubits become entangled, they stay connected no matter how far apart they are. If one qubit is changed, the other changes instantly. Any attempt to disrupt the entanglement, such as hacking, would immediately alert both people communicating.

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Man surfing the internet on his laptop (Kurt “CyberGuy” Knutsson)

SELLING ON THE INTERNET? BEWARE OF SNEAKY TACTICS SCAMMERS USE TO TRICK YOU

How quantum internet promises ultra-secure communication

One of the biggest breakthroughs of quantum internet is its potential to eliminate hacking and data breaches. Here’s how.

  • Quantum key distribution: This technology allows two users to share encryption keys in a way that physically prevents third-party interference. If a hacker tries to intercept the data, the system detects it immediately and blocks unauthorized access.
  • Unhackable networks: Traditional encryption relies on complex math problems that could eventually be cracked by powerful computers. Quantum internet uses the laws of physics to secure data, making it resistant to even the most advanced cyberattacks.
  • True end-to-end security: Normally, data travels through multiple servers, making it more vulnerable to attacks. Quantum communication, however, creates a direct link between sender and receiver, eliminating interception risks.

What quantum internet could mean for online privacy and security

Quantum internet could completely redefine online privacy, making it harder for hackers, corporations or even governments to access personal data. Here’s how it could transform your online experience.

  • Unbreakable encryption for everyday users: Imagine sending an email or making an online purchase without worrying about hackers getting to your data. Quantum encryption is so advanced that it’s practically impossible to crack, keeping your passwords, banking details and personal files safer than ever.
  • A new standard for digital privacy: Today, encrypted messages, unfortunately, can sometimes be accessed by service providers. Quantum internet removes that risk by ensuring only the sender and receiver can read a message, so not even the hosting platform can access it.
  • Staying ahead of cyber threats: Hackers are constantly finding new ways to crack traditional encryption. Quantum internet is designed to be resistant to these threats, making data breaches nearly impossible.

Tablet showing a username and password screen (Kurt “CyberGuy” Knutsson)

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Challenges and the road ahead

While the potential of quantum internet is exciting, there are still hurdles to overcome. The technology is still in early development, with most experiments confined to research labs. Unlike the traditional internet, quantum networks need specialized equipment to keep signals strong across cities or even countries. Developing this technology requires massive investments and breakthroughs before quantum internet can become widely available. Another key challenge is the transition from today’s internet to quantum internet. 

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Since most existing technology is built for current networks, the shift won’t happen overnight. Instead, hybrid systems that combine elements of both traditional and quantum communication can serve as a bridge, helping businesses, governments and everyday users to adapt without disrupting the current digital infrastructure. 

Despite these challenges, progress is happening. Major countries, including the U.S., are investing heavily in quantum research, and scientists have successfully demonstrated that the technology works. While it may take years before quantum internet reaches everyday users, these breakthroughs are laying the foundation for a safer, more private digital future.

Ways to stay safe while surfing the internet

While quantum internet is a ways away, it’s important to stay safe on the internet we use today. Until that new technology arrives, here are a few ways to protect yourself online.

1) Have strong antivirus software: Until a more secure internet becomes available, it’s important to use tools that help protect against everyday threats like unsafe links and malware. The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have 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.

2) Be careful when using public Wi-Fi: Public Wi-Fi remains one of the easiest ways for hackers to access your data. The temptations and risks of free Wi-Fi make it important to think twice before connecting to an unsecured network. Avoid logging into sensitive accounts or entering personal details unless you’re using a VPN or other form of encryption.

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3) Use a VPN: Consider using a VPN to protect against hackers snooping on your device as well. VPNs will protect you from those who want to track and identify your potential location and the websites that you visit. A reliable VPN is essential for protecting your online privacy and ensuring a secure, high-speed connection. For the best VPN software, see my expert review of the best VPNs for browsing the web privately on your Windows, Mac, Android and iOS devices.

4) Invest in personal data removal services: While no service promises to remove all your data from the internet, having a removal service is great if you want to constantly monitor and automate the process of removing your information from hundreds of sites continuously over a longer period of time. Check out my top picks for data removal services here.

5) Enable two-factor authentication (2FA): Until more advanced security becomes mainstream, 2FA is a simple way to protect your accounts. It adds an extra layer of security by requiring a second step to log in, like a code sent to your phone. For even stronger protection, consider using a security key that plugs into your device.

Kurt’s key takeaways

Quantum internet represents a large shift in how we think about communication, privacy and security. By harnessing the power of physics, it promises to create a network that’s faster, more secure and more private than anything we’ve seen before. While the technology is still emerging, it has the potential to change the internet forever.

What are your initial reactions to the concept of quantum internet? Are you excited, skeptical or concerned, and why? 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 2025 CyberGuy.com. All rights reserved.

Technology

Here’s your first look at Kratos in Amazon’s God of War show

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Here’s your first look at Kratos in Amazon’s God of War show

Amazon has slowly been teasing out casting details for its live-action adaptation of God of War, and now we have our first look at the show. It’s a single image but a notable one showing protagonist Kratos and his son Atreus. The characters are played by Ryan Hurst and Callum Vinson, respectively, and they look relatively close to their video game counterparts.

There aren’t a lot of other details about the show just yet, but this is Amazon’s official description:

The God of War series storyline follows father and son Kratos and Atreus as they embark on a journey to spread the ashes of their wife and mother, Faye. Through their adventures, Kratos tries to teach his son to be a better god, while Atreus tries to teach his father how to be a better human.

That sounds a lot like the recent soft reboot of the franchise, which started with 2018’s God of War and continued through Ragnarök in 2022. For the Amazon series, Ronald D. Moore, best-known for his work on For All Mankind and Battlestar Galactica, will serve as showrunner. The rest of the cast includes: Mandy Patinkin (Odin), Ed Skrein (Baldur), Max Parker (Heimdall), Ólafur Darri Ólafsson (Thor), Teresa Palmer (Sif), Alastair Duncan (Mimir), Jeff Gulka (Sindri), and Danny Woodburn (Brok).

While production is underway on the God of War series, there’s no word on when it might start streaming.

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300,000 Chrome users hit by fake AI extensions

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300,000 Chrome users hit by fake AI extensions

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Your web browser may feel like a safe place, especially when you install helpful tools that promise to make your life easier. But security researchers have uncovered a dangerous campaign in which more than 300,000 people installed Chrome extensions pretending to be artificial intelligence (AI) assistants. Instead of helping, these fake tools secretly collect sensitive information like your emails, passwords and browsing activity.

They used familiar names like ChatGPT, Gemini and AI Assistant. If you use Chrome and have installed any AI-related extension, your personal information may already be exposed. Even worse, some of these malicious extensions are still available today, putting more people at risk without their knowing.

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More than 300,000 Chrome users installed fake AI extensions that secretly harvested sensitive data. (Kurt “CyberGuy” Knutsson)

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What you need to know about fake AI extensions

Security researchers at browser security company LayerX discovered a large campaign involving 30 malicious Chrome extensions disguised as AI-powered assistants (via BleepingComputer). Together, these extensions were installed more than 300,000 times by unsuspecting users.

Some of the most popular extensions included names like AI Sidebar with 70,000 users, AI Assistant with 60,000 users, ChatGPT Translate with 30,000 users, and Google Gemini with 10,000 users. Another extension called Gemini AI Sidebar had 80,000 users before it was removed.

These extensions were distributed through the official Chrome Web Store, which made them appear legitimate and trustworthy. Even more concerning, researchers found that many of these extensions were connected to the same malicious server, showing they were part of a coordinated effort.

While some extensions have since been removed, others remain available. This means new users could still unknowingly install them and expose their personal data. Here’s the list of the affected extensions:

  • AI Assistant
  • Llama
  • Gemini AI Sidebar
  • AI Sidebar
  • ChatGPT Sidebar
  • Grok
  • Asking ChatGPT
  • ChatGBT
  • Chat Bot GPT
  • Grok Chatbot
  • Chat With Gemini
  • XAI
  • Google Gemini
  • Ask Gemini
  • AI Letter Generator
  • AI Message Generator
  • AI Translator
  • AI For Translation
  • AI Cover Letter Generator
  • AI Image Generator ChatGPT
  • Ai Wallpaper Generator
  • Ai Picture Generator
  • DeepSeek Download
  • AI Email Writer
  • Email Generator AI
  • DeepSeek Chat
  • ChatGPT Picture Generator
  • ChatGPT Translate
  • AI GPT
  • ChatGPT Translation
  • ChatGPT for Gmail

FAKE AI CHAT RESULTS ARE SPREADING DANGEROUS MAC MALWARE

These malicious tools were listed in the official Chrome Web Store, making them appear legitimate and trustworthy. (LayerX)

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How the fake AI Chrome extension attack works

These fake extensions pretend to offer helpful AI features, such as translating text, summarizing emails, or acting as an AI assistant. But behind the scenes, they quietly monitor what you are doing online.

Once installed, the extension gains permission to view and interact with the websites you visit. This allows it to read the contents of web pages, including login screens where you enter your username and password.

In some cases, the extensions specifically targeted Gmail. They could read your email messages directly from your browser, including emails you received and even drafts you were still writing. This means attackers could access private conversations, financial information and sensitive personal details.

The extensions then sent this information to servers controlled by the attackers. Because they loaded content remotely, the attackers could change their behavior at any time without needing to update the extension.

Some versions could also activate voice features through your browser. This could potentially capture spoken conversations near your device and send transcripts back to the attackers.

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If you installed one of these extensions, attackers may already have access to extremely sensitive information. This includes your email content, login credentials, browsing habits and possibly even voice recordings.

We reached out to Google for comment, and a spokesperson told CyberGuy that the company “can confirm that the extensions from this report have all been removed from the Google Web Store.”

BROWSER EXTENSION MALWARE INFECTED 8.8M USERS IN DARKSPECTRE ATTACK

Once installed, the extensions could read emails, capture passwords, monitor browsing activity and send the data to attacker-controlled servers. (Bildquelle/ullstein bild via Getty Images)

7 ways you can protect yourself from malicious Chrome extensions

If you have ever installed an AI-related Chrome extension, taking a few simple precautions now can help protect your accounts and prevent further damage.

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1) Remove any suspicious or unused browser extensions

On a Windows PC or Mac, open Chrome and type chrome://extensions into the address bar. Review every extension listed. If you see anything unfamiliar, especially AI assistants you don’t remember installing, click “Remove” immediately. Malicious extensions depend on going unnoticed. Removing them stops further data collection and cuts off the attacker’s access to your information.

2) Change your passwords

If you installed any suspicious extension, assume your passwords may be compromised. Start by changing your email password first, since email controls access to most other accounts. Then update passwords for banking, shopping and social media accounts. This prevents attackers from using stolen credentials to break into your accounts.

3) Use a password manager to create and protect strong passwords

A password manager generates unique, complex passwords for each account and stores them securely. This prevents attackers from accessing multiple accounts if one password is stolen. Password managers also alert you if your login credentials appear in known data breaches, helping you respond quickly and protect your identity. Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.

4) Install strong antivirus software and keep it active

Good antivirus software can detect malicious browser extensions, spyware, and other hidden threats. It scans your system for suspicious activity and blocks harmful programs before they can steal your information. This adds an important layer of protection that works continuously in the background to keep your device safe. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com.

5) Use an identity theft protection service

Identity theft protection services monitor your personal data, including email addresses, financial accounts, and Social Security numbers, for signs of misuse. If criminals try to open accounts or commit fraud using your information, you receive alerts quickly. Early detection allows you to act fast and limit financial and personal damage. See my tips and best picks on how to protect yourself from identity theft at Cyberguy.com.

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6) Keep your browser and computer fully updated

Software updates fix security vulnerabilities that attackers exploit. Enable automatic updates for Chrome and your operating system so you always have the latest protections. These updates strengthen your defenses against malicious extensions and prevent attackers from taking advantage of known weaknesses.

7) Use a personal data removal service

Personal data removal services scan data broker websites that collect and sell your personal information. They help remove your data from these sites, reducing what attackers can find and use against you. Less exposed information means fewer opportunities for criminals to target you with scams, identity theft or phishing attacks.

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.

Kurt’s key takeaway

Even tools designed to make your life easier can become tools for cybercriminals. Malicious extensions often hide behind trusted names and convincing features, making them difficult to spot. You can significantly reduce your risk by reviewing your browser extensions regularly, removing anything suspicious and using protective tools like password managers and strong antivirus software.

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Have you checked your browser extensions recently? Let us know your thoughts by writing to us at Cyberguy.com.

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Copyright 2026 CyberGuy.com. All rights reserved.

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Anthropic refuses Pentagon’s new terms, standing firm on lethal autonomous weapons and mass surveillance

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Anthropic refuses Pentagon’s new terms, standing firm on lethal autonomous weapons and mass surveillance

Less than 24 hours before the deadline in an ultimatum issued by the Pentagon, Anthropic has refused the Department of Defense’s demands for unrestricted access to its AI.

It’s the culmination of a dramatic exchange of public statements, social media posts, and behind-the-scenes negotiations, coming down to Defense Secretary Pete Hegseth’s desire to renegotiate all AI labs’ current contracts with the military. But Anthropic, so far, has refused to back down from its two current red lines: no mass surveillance of Americans, and no lethal autonomous weapons (or weapons with license to kill targets with no human oversight whatsoever). OpenAI and xAI had reportedly already agreed to the new terms, while Anthropic’s refusal had led to CEO Dario Amodei being summoned to the White House this week for a meeting with Hegseth himself, in which the Secretary reportedly issued an ultimatum to the CEO to back down by the end of business day on Friday or else.

In a statement late Thursday, Amodei wrote, “I believe deeply in the existential importance of using AI to defend the United States and other democracies, and to defeat our autocratic adversaries. Anthropic has therefore worked proactively to deploy our models to the Department of War and the intelligence community.”

He added that the company has “never raised objections to particular military operations nor attempted to limit use of our technology in an ad hoc manner” but that in a “narrow set of cases, we believe AI can undermine, rather than defend, democratic values” — going on to specifically mention mass domestic surveillance and fully autonomous weapons. (Amodei mentioned that “partial autonomous weapons … are vital to the defense of democracy” and that fully autonomous weapons may eventually “prove critical for our national defense,” but that “today, frontier AI systems are simply not reliable enough to power fully autonomous weapons.” He did not rule out Anthropic acquiescing to the military’s use of fully autonomous weapons in the future but mentioned that they were not ready now.)

The Pentagon had already reportedly asked major defense contractors to assess their dependence on Anthropic’s Claude, which could be seen as the first step to designating the company a “supply chain risk” – a public threat that the Pentagon had made recently (and a classification usually reserved for threats to national security). The Pentagon was also reportedly considering invoking the Defense Production Act to make Anthropic comply.

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Amodei wrote in his statement that the Pentagon’s “threats do not change our position: we cannot in good conscience accede to their request.” He also wrote that “should the Department choose to offboard Anthropic, we will work to enable a smooth transition to another provider, avoiding any disruption to ongoing military planning, operations, or other critical missions. Our models will be available on the expansive terms we have proposed for as long as required.”

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