Technology
Homeland Security warns federal agencies of hackers targeting Google Chrome, Excel spreadsheets
The Cybersecurity and Infrastructure Security Agency, or CISA, is issuing a new warning: your Google Chrome browser and Excel spreadsheets could be at risk of an attack. The agency identified two new exploits that could give hackers easy access to your computer.
Federal agencies have until January 23 to make sure they’re protected. Here are some ways to make sure you’re protected too.
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Microsoft logo on keyboard (Kurt “CyberGuy” Knutsson)
Microsoft Excel’s new exploit
Hackers are targeting Microsoft Excel using a huge vulnerability in a library that reads Excel files. The bug is in a library called Spreadsheet::ParseExcel. It allows hackers to run malware remotely. Specifically, hackers can utilize a string in the library to run programs on your computer.
This exploit has popped up before. Security firm Barracuda noticed Chinese hackers using the exploit last month. They would create custom Excel attachments to exploit the bug and run any program they wanted to.
While Barracuda addressed this with a patch, they say open-source libraries could still be at risk. The company also issued a warning to anyone who uses Spreadsheet::ParseExcel, recommending they review the bug and take any necessary action.
Google Chrome browser on laptop (Kurt “CyberGuy” Knutsson)
MORE: THE 7 SIGNS YOU’VE BEEN HACKED
Google Chrome’s bug
Google’s eighth day zero attack comes in the form of an attack on an open-source project. WebRTC allows web browsers and mobile applications to communicate in real-time. However, hackers are using it to overload your browser and either cause it to crash or give them permission to do whatever they want. This exploit doesn’t just affect Google Chrome. It also affects other open-source web browsers using WebRTC to communicate. Google issued an emergency fix just last month, but there’s more you can do to protect yourself.
Four essential tips to secure your devices and data from hackers and scammers
To protect yourself from malicious hackers and scammers, we recommend you do the following four things.
1) Be cautious about using open-source applications
When you use open-source applications or programs, it’s always wise to remember that anyone has the ability to change the application or program’s code. They have the ability to do something malicious if they want to. Only use open-source applications that you trust, and be careful about what you download.
2) Update your applications regularly
One of the easiest ways to protect yourself from hackers and scammers is to keep your applications up to date. Hackers often exploit vulnerabilities in outdated software to gain access to your devices or data. By updating your applications regularly, you can patch these security holes and prevent hackers from exploiting them.
3) Avoid opening suspicious attachments or links
Another common way that hackers and scammers try to infect your devices or steal your information is by sending you malicious attachments or links. These can be disguised as legitimate emails, messages, or websites, but they can contain malware, phishing or ransomware. To avoid falling for these traps, you should always check the sender, the subject, and the content of any attachment or link before opening it. If you are not sure, do not open it or click on it.
4) Use antivirus protection
Antivirus protection is essential for keeping your computer and data safe from malicious attacks. The recent exploits allow hackers to run malware remotely by sending custom Excel attachments and allow hackers to overload your browser and gain access to your system.
So, the best way to protect yourself is to have antivirus protection installed and actively running on all your devices. It will alert you of any malware in your system, warn you against clicking on any malicious links in phishing emails, and ultimately protect you from being hacked. Find my review of Best Antivirus Protection here.
The best way to protect yourself is to have antivirus protection installed and actively running on all your devices. (Kurt “CyberGuy” Knutsson)
MORE: THE NEW IPHONE SECURITY THREAT THAT ALLOWS HACKERS TO SPY ON YOUR PHONE
What to do if you’ve been hacked
If it has already happened and you’ve been hacked, then you should take immediate action to minimize the damage and secure your device. Here are some steps that you can follow:
Change your passwords
If hackers have recorded your passwords using a keylogger, they could access your online accounts and steal your data or money. ON ANOTHER DEVICE (i.e., your laptop or desktop), you should change your passwords for all your important accounts, such as email, banking, social media, etc. You want to do this on another device so the hacker isn’t’ recording you setting up your new password on your hacked device. And you should also use strong and unique passwords that are hard to guess or crack. You can also use a password manager to generate and store your passwords securely.
Monitor your accounts and transactions
You should check your online accounts and transactions regularly for any suspicious or unauthorized activity. If you notice anything unusual, report it to the service provider or the authorities as soon as possible. You should also review your credit reports and scores to see if there are any signs of identity theft or fraud.
Use identity theft protection
Identity Theft protection companies can monitor personal information like your home title, Social Security Number (SSN), phone number, and email address and alert you if it is 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. See my tips and best picks on how to protect yourself from identity theft.
Contact your bank and credit card companies
If hackers have obtained your bank or credit card information, they could use it to make purchases or withdrawals without your consent. You should contact your bank and credit card companies and inform them of the situation. They can help you freeze or cancel your cards, dispute any fraudulent charges, and issue new cards for you.
Alert your contacts
If hackers have accessed your email or social media accounts, they could use them to send spam or phishing messages to your contacts. They could also impersonate you and ask for money or personal information. You should alert your contacts and warn them not to open or respond to any messages from you that seem suspicious or unusual.
Restore your device to factory settings
If you want to make sure that your device is completely free of any malware or spyware, you can restore it to factory settings. This will erase all your data and settings and reinstall the original iOS version. But, you should back up your important data before doing this, and only restore it from a trusted source.
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Kurt’s key takeaways
The recent exploits targeting Google Chrome and Microsoft Excel are a reminder of how vulnerable our devices and data can be to cyberattacks. Hackers are always looking for new ways to exploit the software we use every day, and we need to be vigilant and proactive in protecting ourselves. By following the steps we outlined above, you can reduce the risk of falling victim to these attacks and keep your computer and data safe. Remember, prevention is better than cure, and the best defense is a good offense.
Which aspect of the cyberthreats discussed in the article concerns you the most, and why? Let us know by writing us at Cyberguy.com/Contact.
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Copyright 2024 CyberGuy.com. All rights reserved.
Microsoft Edge is adding a new feature that will allow its Copilot AI chatbot to gather information from all of your open tabs. When you start a conversation with Copilot, you can ask the chatbot questions about what’s in your tabs, compare the products you’re looking at, summarize your open articles, and more.
In its announcement, Microsoft says you can “select which experiences you want or leave off the ones you don’t.” The company is retiring Copilot Mode as well, which could similarly draw information from your tabs but offered some agentic features, like the ability to book a reservation on your behalf. Microsoft has since folded these agentic capabilities into its “Browse with Copilot” tool.
Several other AI features are coming to Edge, including an AI-powered “Study and Learn” mode that can turn the article you’re looking at into a study session or interactive quiz. There’s a new tool that turns your tabs into AI-powered podcasts as well, similar to what you’d find on NotebookLM, and an AI writing assistant that will pop up when you start entering text on a webpage.
You can also give Copilot permission to access your browsing history to provide more “relevant, high-quality answers,” according to Microsoft. Copilot in Edge on desktop and mobile will come with “long-term memory” as well, which can tailor its responses based on your previous conversations. And, when you open up a new tab, you’ll see a redesigned page that combines chat, search, and web navigation, along with the Journeys feature, which uses AI to organize your browsing history into categories that you can revisit.
Meanwhile, an update to Edge’s mobile app will allow you to share your screen with Copilot and talk through the questions about what you’re seeing. Microsoft says you’ll see “clear visual cues” when Copilot is active, “so you know when it’s taking an action, helping, listening, or viewing.”
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If you bought a newer iPhone because Apple made Siri sound like it was about to become your personal artificial intelligence sidekick, you may want to pay attention.
Apple has agreed to pay $250 million to settle a class-action lawsuit over claims that it misled customers about new Apple Intelligence and Siri features. The case centers on the iPhone 16 launch and certain iPhone 15 models that were marketed as ready for Apple’s next wave of AI. The settlement still needs court approval, and Apple denies wrongdoing.
The lawsuit argues that Apple promoted a smarter, more personal Siri before those features were actually available. For some buyers, that was a big deal. A new iPhone can cost hundreds of dollars, and many people upgrade only when they think they are getting something meaningfully new.
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WHY IPHONE USERS ARE THE NEW PRIME SCAM TARGETS
U.S. buyers of certain iPhone 16 and iPhone 15 Pro models may qualify for payments if a judge approves Apple’s proposed settlement. (Getty Images)
What Apple is accused of promising
Apple introduced Apple Intelligence in June 2024 and promoted it as a major step forward for iPhone, iPad and Mac. A key part of that pitch was a more personalized Siri that could understand context, work across apps and help with everyday tasks in a more useful way.
The lawsuit claims Apple’s marketing made consumers believe those advanced Siri features would arrive with the iPhone 16 or soon after. Instead, buyers received phones that had some Apple Intelligence tools, but not the full Siri overhaul that many expected.
That gap is the heart of the case. Plaintiffs say customers bought or upgraded devices based on AI features that were not ready. Apple says it has rolled out many Apple Intelligence features and settled the case, so it can stay focused on its products.
How much money could iPhone owners get?
The proposed settlement creates a $250 million fund. Eligible customers who file approved claims are expected to receive at least $25 per eligible device. That amount could rise to as much as $95 per device, depending on how many people file claims and other settlement factors.
That means this will not be a huge payday for most people. Still, if you bought one of the covered phones, it may be worth watching for a claim notice. A few minutes of paperwork could put some money back in your pocket.
Which iPhones may qualify?
The proposed settlement covers U.S. buyers who purchased any iPhone 16 model, iPhone 15 Pro or iPhone 15 Pro Max between June 10, 2024, and March 29, 2025.
Covered iPhone 16 models include the iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max and iPhone 16e. The settlement also includes the iPhone 15 Pro and iPhone 15 Pro Max, but not every iPhone 15 model.
The key details are the device model, the purchase date and whether the phone was bought in the United States.
HOW YOU CAN GET A SLICE OF APPLE’S $250M IPHONE SETTLEMENT
Apple has agreed to pay $250 million to settle claims it misled customers about Apple Intelligence and Siri features on newer iPhones. (Michael Nagle/Bloomberg)
How will you file a claim?
You do not need to do anything immediately. The settlement still needs a judge’s approval. Once the claims process opens, eligible customers are expected to receive a notice by email or mail with instructions on how to file through a settlement website.
That notice matters because scammers love moments like this. A real settlement notice should not ask for your Apple ID password, bank login or payment to claim your money. If you receive a message about this settlement, do not click blindly. Go slowly, check the sender and look for the official settlement administrator details once they are available.
Why this case matters beyond one Siri feature
This case hits a bigger nerve. Tech companies are racing to sell AI as the next must-have feature. That creates a problem for shoppers. You are often asked to buy now based on what a company says will arrive later.
That can be frustrating when the feature is the reason you upgraded. A smarter Siri sounds useful. A phone that can understand your personal context, search across apps and help with daily tasks could save time. But if those tools are delayed, limited or missing, the value of the upgrade changes.
This settlement also sends a message about AI marketing. Companies can talk about future features, but consumers need clear timing and plain explanations. “Coming soon” can mean very different things when you are spending $800, $1,000 or more.
We reached out to Apple for comment, but did not hear back before our deadline.
FIRST 15 THINGS TO DO OR TRY FIRST WHEN YOU GET A NEW IPHONE
Apple denies wrongdoing but agreed to settle claims tied to its marketing of Apple Intelligence and Siri features. (Qilai Shen/Bloomberg)
What this means to you
If you bought a covered iPhone during the settlement period, keep an eye on your email and regular mail. You may qualify for a payment if the court approves the deal.
You should also keep your receipt or proof of purchase if you have it. Your Apple purchase history, carrier account or retailer receipt may help if the claim process asks for details.
More broadly, this is a reminder to treat AI features like any other big tech promise. Before you upgrade, ask one simple question: Can the feature do what is being advertised today, or is the company asking me to wait?
That question can save you from buying a device for a future feature that may arrive much later than expected.
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Kurt’s key takeaways
Apple has built its brand on making technology feel polished, personal and easy to use. That is why this Siri settlement hits a nerve. People were buying phones they use every day for texts, photos, directions, reminders and everything in between. Many expected AI to make those everyday tasks easier, which is why the delay felt frustrating. The proposed payout may be modest, but the bigger issue is trust. When a company sells AI as a reason to upgrade, customers deserve to know what actually works now and what is still coming later.
Would you still buy a new phone for promised AI features, or would you wait until they actually show up? Let us know by writing to us at CyberGuy.com.
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Copyright 2026 CyberGuy.com. All rights reserved.
Instagram is once again cribbing from competitors like Snapchat and BeReal with a new photo-sharing format it calls “Instants,” which are ephemeral photos that you can’t edit and that you can only share with your close friends or followers that follow you back. Instants are available globally beginning on Wednesday as a feature in the inbox in the Instagram app and as a separate app that’s now in testing in select countries.
To access Instants from the Instagram app, go to your DM inbox and look in the bottom-right corner for an icon or a stack of photos. After you post a photo, your friends can emoji react to it and send a reply to your DMs, but after they see it, the photo disappears for them. Instants also disappear after 24 hours, and they can’t be captured in screenshots or screen recordings.
However, your Instants will remain in an archive for you for up to a year, and you can reshare them as a recap to your Instagram Stories if you’d like. You can also undo sending an Instant right after you post it or delete it from your archive.
The Instants mobile app, which popped up in Italy and Spain in April, gives you “immediate access to the camera” and only requires an Instagram account, Instagram says. “Instants you share on the separate app will show up for friends on Instagram and vice versa. We’re trying this separate app out to see how our community uses it, and we’ll continue to evolve it as we learn more.”
Instagram, in its testing, has seen that people “tend to use Instants to share much more casual, much more authentic moments about their day,” according to Instagram boss Adam Mosseri. “And we know that this type of sharing of personal moments with friends is a core part of what makes Instagram Instagram, but we also know that a lot of people don’t really share a lot to their profile grids anymore.”
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