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Why does my Mac freeze and how do I fix it?

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Why does my Mac freeze and how do I fix it?

Imagine this frustrating scenario: you’re in the middle of a crucial task on your Mac, and, suddenly, everything comes to a halt. You can’t click anything, and your screen is frozen.

This can be a nightmare for anyone using a Mac desktop or a MacBook laptop. 

Let’s explore the causes of a frozen Mac and provide quick solutions to restore its functionality. If you have a PC and it is freezing up, check out these steps to fix the issue by clicking here. 

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Man frustrated with his computer freezing up  (Kurt “CyberGuy” Knutsson)

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4 reasons that can cause a Mac to freeze?

1. A hung application consuming excessive memory or CPU resources

2. Newly installed extension or driver that causes a compatibility issue with MacOS

3. Faulty keyboard, mouse or other external device

4. Malware infection leading to increased CPU and memory load.

A woman frustrated by her computer freezing up  (Kurt “CyberGuy” Knutsson)

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How to fix a frozen mac

Tip 1 — Force-quit applications

If an application freezes, it may only be temporary. Wait a minute or two to see if your Mac stays locked up. If it does, you might need to force-quit the frozen application.

To force-quit an application, use this key command: Command + Option + Escape. This will open the Force Quit menu. Alternatively, right-click the app’s Dock icon and select Force Quit from the menu.

A woman on her laptop  (Kurt “CyberGuy” Knutsson)

Tip 2 — Restart your Mac

If force-quitting doesn’t work, restart your Mac. If you can move your mouse pointer, click on the Apple Menu in the top-left corner and select Restart.

If you are unable to control the pointer, there are still a couple of other things you can do:

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  • If  you have an older Mac desktop or MacBook that has a DVD drive, press Cmd + Ctrl + Eject
  • If you have a newer Mac that has a Touch ID, press Cmd + Ctrl + Option + Power Button
  • If you have a newer Mac and the steps above don’t work, you will need to press and hold the power button to force-turn off the Mac.

Mac on a desktop  (Kurt “CyberGuy” Knutsson)

Tip 3 — Free up RAM

Being low on RAM can also cause a frozen Mac. Random Access Memory, or RAM, is the memory that your Mac uses to run applications and handle active tasks. When you open an application, load a file or perform any task, it is loaded into your Mac’s RAM for quick access.

If your Mac doesn’t have enough RAM to handle all the active processes, it starts using virtual memory, which is a portion of your hard drive that acts as temporary RAM. Virtual memory is significantly slower than using actual RAM because it takes more time to read data from the hard drive. Here are a few easy ways to free up RAM on your Mac:

  • Quit applications you’re not actively using as they consume RAM even when running in the background.
  • Ensure your Mac’s operating system and applications are up to date. Newer versions often include performance improvements and bug fixes.

Remove applications you no longer use to free up RAM and storage space.

Mac computer keys  (Kurt “CyberGuy” Knutsson)

Tip 4 — Disconnect external devices

Sometimes, some peripherals cause your Mac to freeze. To check if that is the case, shut down your Mac and disconnect all external devices — keyboards, mice, external monitors, etc. Now, press the power button to restart your Mac and see if it is still frozen.

Tip 5 — Uninstall unresponsive apps

If a specific app is consistently causing your Mac to freeze, consider uninstalling it.      

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  • Here’s how to uninstall an unresponsive app:
  • Go to the Applications folder and locate the app                                               

Steps to uninstall unresponsive apps  (Kurt “CyberGuy” Knutsson)

  • Drag the application to the trash icon
  • Alternatively, you can left-click on the app and select Move to Trash 

Steps to uninstall unresponsive apps (Kurt “CyberGuy” Knutsson)

Tip 6 — Update your software

Sometimes, your Mac can freeze up due to a software bug in an older version of MacOS. It’s always important to keep MacOS updated because Apple routinely rolls out software improvements to help your Mac run smoothly.

Here’s how to make sure you’re running the latest version of macOS:

  • Click on the Apple Menu in the top left corner and click on System Settings

WHAT IS ARTIFICIAL INTELLIGENCE (AI)?

Steps to update your software Steps to uninstall unresponsive apps (Kurt “CyberGuy” Knutsson)

  • Click on General
  • Click Software Update. If there is an update available, you should install it now.
  • Next, you should update your apps. You can do this quickly by opening the App Store and checking the updates tab.

NEW MALWARE IS TARGETING MACOS AND CAN STEAL SENSITIVE INFORMATION FROM YOUR DEVICE

Tip 7 — Restart in safe mode

If your Mac is freezing due to a broken extension, you can spot it by booting into safe mode. This special boot loads only those files essential to macOS and performs some troubleshooting. If your Mac isn’t having the same issue when booting into safe mode, then it probably means the problem is with an app or extension.

Booting in safe mode differs depending on which generation of Mac you have. If you have an Intel-based Mac (2020 or earlier), follow these steps:

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  • Shut down your Mac and wait 10 seconds
  • Restart your Mac and hold the shift key
  • Release the shift key once the login window appear

If you have a newer Mac that runs on Apple’s silicon (2021 or later), follow these steps to restart in safe mode:

  • Shut down your Mac and wait 10 seconds.
  • Press and hold the power button until the startup options window appears
  • Select a startup disk.
  • Press the Shift key and click Continue in Safe Mode.
  • Release the Shift key.

10 USEFUL MAC KEYBOARD SHORTCUTS YOU NEED TO KNOW

Tip 8 — Repair disk with Disk Utility

An issue with your startup disk can cause your Mac to lock up occasionally. Luckily, Apple has a built-in tool to help repair an issue with the Mac’s startup disk. Here’s how to repair a disk with the Disk Utility tool:

Steps to update your software Steps to uninstall unresponsive apps  (Kurt “CyberGuy” Knutsson)

  • Click Utilities
  • Open Disk Utility

Steps to repair disk with Disk Utility  (Kurt “CyberGuy” Knutsson)

  • Select your startup disk in the sidebar
  • Click First Aid in the Disk Utility toolbar

Kurt’s key takeaways

There’s no need to panic if your Mac freezes. Follow these eight tips, and you should have your Mac back up and running in no time. Always keep your Mac current, and don’t forget to delete old applications or extensions you don’t use anymore. It’s pretty easy to overlook — I know I do sometimes — but it can free up space on your Mac and keep everything running smoothly.

In your opinion, what could Apple do to improve the Mac user experience, especially regarding system stability? Let us know in the comments below. Let us know by writing us at Cyberguy.com/Contact

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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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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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Amazon shelves Blue Jay warehouse robot

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Amazon shelves Blue Jay warehouse robot

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Amazon made a lot of noise in October when it unveiled Blue Jay, a multi-armed warehouse robot built to speed up same-day deliveries. Just months later, the company quietly ended the program.

The robot’s core technology will live on in other projects. Still, Blue Jay itself is done.

That sudden shift raises an important question. If one of the world’s most advanced logistics companies cannot make a high-profile robot work at scale, what does that say about the future of artificial intelligence (AI) in the real world?

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Blue Jay was designed as a ceiling-mounted robot that could sort and handle multiple packages at once to speed up same-day delivery. (Amazon)

What Blue Jay was supposed to do

Blue Jay was not a simple conveyor belt upgrade. It was a ceiling-mounted system designed to recognize and sort multiple packages at once. Using AI-powered perception models, the robot could:

  • Identify packages in motion
  • Coordinate several arms at the same time
  • Manipulate items with speed and precision

Amazon said it developed the system in under a year. That pace alone was impressive. The goal was clear: move more packages faster while reducing strain on workers in same-day fulfillment centers. On paper, that sounds like a win for everyone.

Why Blue Jay ran into trouble

Despite the hype, Blue Jay faced steep engineering and cost challenges. First, the robot was mounted to the ceiling. That design required complex installation and tight integration into Amazon’s Local Vending Machine warehouses. Those facilities operate as massive, single structures with automation baked into the building itself.

There was little room to reconfigure hardware once installed. That rigidity likely became a liability. In software, AI can pivot overnight with a code update. In the physical world, changing course means retooling steel beams, motors and entire layouts. That takes time and serious money. Several employees who worked on Blue Jay have already moved to other robotics projects.

The company reportedly continues to experiment and improve its warehouse systems. The technology behind Blue Jay will, in fact, inform future designs. In other words, the robot failed. The ideas did not.

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WAYMO’S CHEAPER ROBOTAXI TECH COULD HELP EXPAND RIDES FAST

Engineering complexity and high installation costs limited how easily Blue Jay could scale inside Amazon’s tightly integrated warehouse system. (Amazon)

From LVM to Orbital: A strategic shift

Amazon’s next move centers on a new warehouse architecture called Orbital. Unlike the older Local Vending Machine model, Orbital is modular. It can be built from smaller units and deployed faster in different layouts.

That flexibility matters. Retail is fragmenting. Customers expect same-day delivery from urban hubs, local stores and even grocery locations. Orbital could allow Amazon to place micro-fulfillment centers behind retail stores, including Whole Foods locations. That would help it compete more directly with Walmart, which already has a strong grocery footprint.

Alongside Orbital, Amazon is developing a new robotics system called Flex Cell. Unlike Blue Jay’s ceiling mount, Flex Cell is expected to sit on the floor.

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That small design change signals something bigger. Amazon appears to be moving from massive centralized automation to smaller, adaptable systems built for the unpredictable realities of local retail.

What this means for your deliveries

If you order from Amazon regularly, you might wonder whether this affects you. In the short term, probably not. Your packages will still show up. Same-day and next-day delivery remain core priorities. However, the long-term story is more interesting. Amazon’s robotics strategy shapes how fast your order arrives, how much you pay and how local warehouses operate in your community.

If Orbital works, you could see:

  • Faster delivery from smaller neighborhood hubs
  • Better handling of chilled and perishable items
  • More automation in retail backrooms

If it struggles, same-day expansion could slow or become more expensive. That tension reflects a broader truth about AI. Writing code is one thing. Teaching a robot to lift boxes in a real warehouse without breaking down is another.

AI TRUCK SYSTEM MATCHES TOP HUMAN DRIVERS IN MASSIVE SAFETY SHOWDOWN WITH PERFECT SCORES

After only a few months, Amazon discontinued the Blue Jay program while continuing to reuse parts of its underlying robotics technology. (Amazon)

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The gap between AI hype and hardware reality

Blue Jay highlights a growing divide in the tech world. AI in software is moving at lightning speed. Chatbots, image tools and predictive systems evolve weekly.

Hardware is different. Robots must deal with gravity, friction, heat and unpredictable human environments. Every mistake has a physical cost.

Amazon’s course correction shows that even tech giants hit limits when translating AI breakthroughs into moving metal. That does not mean automation is slowing down. It means the path is bumpier than the headlines suggest.

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Kurt’s key takeaways

Amazon shelving Blue Jay is not a retreat from robotics. It is a recalibration. The company is betting that modular, flexible systems will win over massive, tightly integrated machines. That shift could define the next era of e-commerce logistics. For you, the promise remains the same: faster delivery, better availability and more local convenience. But behind that promise is a complicated dance between AI ambition and real-world constraints.

If even Amazon struggles to make advanced robots work at scale, how much of the AI revolution is still more vision than reality? Let us know by writing to us at Cyberguy.com

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