Technology
How to tell if your browser has been hijacked
Imagine starting your day only to find your browser’s homepage replaced by a strange website and your searches rerouted to unfamiliar territories. This digital disarray isn’t a fluke — it’s a sign of a browser hijacking. This intrusive software takes over your browser settings, but the good news is they can be defeated.
Browser hijackers often infiltrate systems through deceptive apps or browser extensions, masquerading as legitimate tools like a Google Docs Chrome extension. They gain permissions and then proceed to overhaul your browser’s core settings.
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Person typing on laptop and on smartphone (Kurt “CyberGuy” Knutsson)
How to detect and remove malicious browser extensions
Malicious browser extensions are programs that can harm your computer or compromise your personal information by spying, stealing, redirecting or displaying unwanted ads. But how can you tell if you have a malicious browser extension installed on your browser? There are some signs that can indicate that an extension is malicious, such as:
- The extension requests permissions that are not related to its functionality, such as accessing your personal data, clipboard or keystrokes.
- The extension has negative reviews or low ratings from other users who have experienced problems with it.
- The extension changes your browser settings, such as your homepage, search engine or new tab page, without your consent.
- The extension opens new tabs or windows to suspicious websites or redirects your browser to unwanted sites.
- The extension displays intrusive or inappropriate ads that cover the entire browser window or redirect you to phishing or malware sites.
If you notice any of these signs, you should remove the extension immediately from your browser. You can also use antivirus software to scan and detect malicious extensions.
Woman typing on laptop (Kurt “CyberGuy” Knutsson)
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Purging the malware on Windows and Mac
Sometimes, antivirus software may not be able to remove ALL the traces of the malware, so manually deleting the app is a fail-safe option.
For Windows users, the process involves navigating to “Apps and Features” from the Start menu, finding the application or extension that matches the malware name, icon or date of installation, and selecting “Uninstall.”
For Mac users, open Finder, go to Applications and look for the app or extension that matches the malware name, icon or date of installation in the Applications folder. You can also check the app size and see if it is unusually large or small and drag it to the Trash. Then click Empty in the upper right of the trash folder.
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Woman using PC (Kurt “CyberGuy” Knutsson)
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Restoring browser settings to default
Post-extension removal, it’s crucial to reset your browser settings. This includes your default search engine, home page and start pages. Here’s how to do it on your computer.
Chrome
- Chrome users can reset by clicking the three vertical dots in the upper right of the screen
- Tap Settings
- Click Reset settings
- Tap Restore settings to their original defaults
- Then, click Reset settings
Edge
- Edge users can reset by clicking the three horizontal dots in the upper right of the screen
- Then click Settings
- Tap Reset Settings on the left
- Click Restore settings to their default values
- Then tap Reset
Firefox
- Firefox users can reset by navigating to the Menu
- Tap Help
- Click Troubleshooting Information
- Then tap Refresh Firefox
Safari
- Safari users can clear their History and related data by selecting Safari
- Clicking History
- Scrolling down to Clear History
- Choosing All History
- Then, click Clear History again
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Prevention is key
Once your browser is free from the clutches of malware, precaution is paramount. The best security measures are preventative ones. Follow these safety tips to keep your device free from browser hijackers:
1) Ensure that every extension downloaded is from a reputable source like the following:
- Apple Safari: Extensions for Safari can be downloaded from the Apple App Store.
- Mozilla Firefox: Extensions for Firefox can be downloaded from the official Mozilla website.
- Microsoft Edge: Extensions for Microsoft Edge can be downloaded from the official Microsoft Store.
- Google Chrome: Extensions for Google Chrome can be downloaded from the Chrome Web Store.
2) Make yourself resilient by using strong antivirus protection and browse with confidence, knowing you’re now equipped to keep hijackers and malware at bay. Keeping hackers out of your devices can be prevented if you have good antivirus software installed. Having antivirus software on your devices will make sure you are stopped from clicking on any potential malicious links, which may install malware on your devices, allowing hackers to gain access to your personal information. Get my picks for the best 2024 antivirus protection winners for your Windows, Mac, Android & iOS devices.
3) Never click on suspicious links, including links in emails, text messages or pop-up notifications.
4) Keep your operating system and browser patches up to date. Browser hijackers can take advantage of holes in operating systems and browsers. Regularly installing software updates to make sure your security systems are operating optimally.
5) Take precautions when downloading software. Thoroughly and carefully read end-user licensing agreements and terms and conditions when you’re downloading software to make sure it hasn’t been bundled with a browser hijacker.
6) Don’t run freeware programs that unpack software after they’ve been installed.
7) Change your passwords. If you suspect that your browser has been hijacked, it’s a good idea to change your passwords for any sensitive accounts, such as email or online banking, to prevent further unauthorized access. Consider using a password manager to generate and store complex passwords.
Woman typing on laptop (Kurt “CyberGuy” Knutsson)
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Kurt’s key takeaways
You don’t want to mess with browser hijackers. They can sneak into your web browser and steal your most private and valuable information. Hackers know this, and they keep making new browser hijackers to make money from your online activities. The best way to protect your device from browser hijackers is to use good antivirus software. It will protect you online and offline, and it will stop you from going to websites that have viruses. But that’s not enough. You also have to be careful about where you go online and what you click on. Most of the time, people get viruses because they make mistakes, not because their software is bad. So, be smart and stay safe online.
How do you feel about browser hijackers and their impact on your online privacy and security? Do you feel like the companies that develop the browsers should do more to protect you? Let us know by writing us at Cyberguy.com/Contact.
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Copyright 2024 CyberGuy.com. All rights reserved.
Technology
Microsoft is disabling Office 2019 for Mac next month
Microsoft’s Office 2019 apps for Mac will stop working next month, because the company isn’t renewing a certificate that validates Office licenses. Owners of Office 2019 for Mac are being warned they’ll have to purchase Office 2024 or a Microsoft 365 subscription if they want to continue editing documents.
Microsoft previously promised that “all your Office 2019 apps will continue to function,” when it announced end of support in 2023. The company then quietly updated that support note last month to remove the mention of apps continuing to function, replacing it with “Rest assured that all your Office 2019 apps won’t lose any data.”
Starting on July 13th, Office 2019 for Mac and Office 2021 for Mac will both run in “reduced functionality mode,” allowing people to open files but not edit, save, or create new documents. The reduced functionality will impact Word, Excel, PowerPoint, Outlook, and OneNote.
While Microsoft is providing a certificate update for Office 2021 as it’s still supported until October 13th, 2026, the company is leaving Office 2019 for Mac users out in the cold as support for these apps ended a few years ago. “Office 2019 for Mac reached end of support on October 10, 2023, and no longer receives updates,” says Microsoft. “Because Office 2019 cannot be updated to the required version, this issue cannot be resolved by updating or reinstalling Office 2019 for Mac.”
JimmyTech points out that old versions of Microsoft 365 apps on Mac and iOS will also be affected by this certificate issue, but a simple update will fix it for those users.
Microsoft regularly ends support of software and there’s always the risk you could run into issues running older apps or versions of Windows. It’s still surprising to not see Microsoft make an exception here though, particularly because this certificate issue breaks the main functionality of an app you’ve paid a one-time license fee for.
Technology
Android fake call detection warns you about scams
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You know that little moment when your phone rings and the name on the screen makes you drop everything?
Maybe it says your spouse, your daughter, your boss or your best friend. You answer because you trust the name. Then the voice sounds familiar too.
That is exactly what makes the latest phone scams so dangerous.
Android’s fake call detection can warn you when a caller may be pretending to be someone saved in your contacts. (Silas Stein/Picture Alliance)
Scammers no longer have to call from a strange number. They can spoof a trusted contact’s phone number. Then they can use AI voice tools to sound like someone you know. Android is now rolling out a new feature called fake call detection to help warn you when that familiar call may be a fake.
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What is Android fake call detection?
Android fake call detection is a new protection built into Phone by Google. It is designed to spot suspected spoofed calls when both people on the call use Phone by Google.
Think of it as your phone quietly asking, “Is this call really coming from that person’s device?” If the answer looks suspicious, your phone can show a warning and advise you to hang up. That small alert could stop a scam before fear, panic or confusion takes over.
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How Android fake call detection works
The feature works automatically in the background. You do not need to answer a quiz, scan a code or press a button during the call. When a trusted contact calls you, their phone sends a silent confirmation signal to your phone. That signal helps prove the call really came from their device.
If a scammer spoofs your contact’s number, that confirmation signal may be missing. Your phone then checks with your contact’s actual device. If the real device says it is not placing a call, your screen can warn you that the call may be fake.
The system uses end-to-end encrypted RCS technology, so the check happens privately. You can also turn the feature off in Phone by Google settings.
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Why fake calls are getting harder to spot
For years, caller ID gave people a sense of control. If the name looked familiar, most of us felt safer picking up. That old habit now works in the scammer’s favor.
Scammers can use internet-based calling tools to spoof numbers. That means your phone may display the name of someone you trust, even though the call comes from somewhere else.
Then comes the AI voice trick. With today’s audio tools, scammers can make a fake voice sound shockingly real. They may pretend to be a family member in trouble, a bank employee warning about fraud or a manager asking for urgent help.
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That combination makes the call feel personal and immediate. It also makes you more likely to act before you think.
Why Android is adding this protection now
Impersonation scams have become a major global problem. INTERPOL’s March 2026 Global Financial Fraud Threat Assessment cited impersonation fraud as one of the leading contributors to more than $400 billion in global losses.
In the U.S., impersonation scams remain one of the top fraud categories reported to the FTC. Losses reached $2.95 billion in 2024.
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Those numbers tell you why this feature deserves attention. Scammers go where the money is. Right now, they know trusted voices and trusted names can open the door.
Which Android phones get fake call detection?
Google says fake call detection is rolling out globally in Phone by Google this month, starting with Pixel devices.
The feature is available on Android 12 and newer devices with Phone by Google, Contacts and Google Messages installed. It also requires RCS capability in Google Messages.
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There is one key limitation. Both you and the person calling you must use Phone by Google for fake call detection to work.
Phone by Google already comes as the default phone app on many Android devices. If your phone uses a different calling app, you can install Phone by Google from the Play Store and set it as your default phone app.
How Android fake call detection protects you
This feature gives you an extra warning at the exact moment you need it most. That timing is important. Scam calls often rely on emotion. The caller may say someone got arrested, a loved one had an accident or a bank account faces an urgent threat.
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When the voice sounds familiar, your guard drops. A warning on your screen can interrupt that emotional rush. It gives you a reason to stop, hang up and verify the story another way.
What Android fake call detection cannot do
This new tool helps, but it cannot protect you from every scam. It may not work if the other person does not use Phone by Google. It also may not cover calls from businesses, unknown numbers or contacts using unsupported devices. So you still need basic scam rules.
If someone asks for money, gift cards, crypto, account codes or remote access to your device, hang up. Then call the person or company back using a number you already trust.
Also, never stay on the line just because the caller tells you to. That is one of the oldest pressure tactics in the scammer playbook.
A spoofed call can look familiar on your screen, even when it is really coming from a scammer. (Kurt CyberGuy Knutsson)
How to protect yourself from AI voice scams
AI voice scams work because they sound personal, urgent and believable, so your best defense is to slow the conversation down before you act.
1) Create a family safe word
Pick a simple word or phrase that only your close family knows. It should be easy to remember but hard for a scammer to guess. Then, if someone calls with an emergency and asks for money, ask for the safe word. If they cannot give it, hang up and verify the story another way.
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2) Pause when the call feels urgent
Scammers want you scared because fear makes people act fast. That is why fake emergency calls often sound intense, emotional and rushed. Take a breath before you do anything. A real loved one, bank or employer will let you verify what is happening.
3) Call back using a trusted number
If a call feels suspicious, hang up. Then call the person back using a number saved in your contacts or one you know is real. Do not use a number, link or instruction the caller gives you. That could send you right back to the scammer.
4) Never send money or codes during the call
Do not send gift cards, crypto, wire transfers or payment app transfers because a caller sounds convincing. Also, never share a one-time passcode, PIN or account login code over the phone. Once scammers get that information, they can move fast.
5) Turn on scam protections on your phone
Use the built-in protections already available on your device. Pixel and Samsung users can enable Scam Detection in the Phone by Google app to help flag suspicious calls. Also, consider using strong antivirus software that includes AI-powered scam protection to help detect scams in texts, online content and deepfake videos. Keep an eye on call warnings too. If your phone tells you something looks risky, treat that alert seriously. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com
6) Keep your phone apps updated
Update Phone by Google, Google Contacts and Google Messages when updates are available. These tools work best when your apps and phone software stay current. Updates often include security improvements, bug fixes and new scam protections.
Here’s how to check for updates on Android:
- Open the Google Play Store app.
- Tap your profile icon in the top right corner.
- Tap Manage apps & device.
- Under Updates available, tap See details.
- Look for Phone by Google, Google Contacts and Google Messages.
- Tap Update next to each app, or tap Update all.
You can also turn on automatic app updates by opening the Google Play Store app, tapping your profile icon, then going to Settings > Network preferences > Auto-update apps. From there, choose whether to update apps over Wi-Fi, over Wi-Fi or mobile data, with limited mobile data or not at all.
Kurt’s key takeaways
If a call feels urgent or suspicious, pause before you respond and verify it another way. (Tristan Spinski/The Washington Post via Getty Images)
Android’s fake call detection is a smart step in the fight against AI-powered phone scams. It recognizes something many people already know: the name on your caller ID no longer proves the person calling you is real. This feature gives Android users another layer of protection when scammers try to hijack trust. Still, the safest move remains simple. Slow down, verify the call and never let panic make the decision for you.
Should the government do more to stop scammers from using AI voices to impersonate the people you trust? Let us know by writing to us at CyberGuy.com
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Technology
Congress just gave DHS another $70 billion
Congress narrowly voted to fund President Donald Trump’s mass deportation agenda, giving the Department of Homeland Security $70 billion over the next three years.
The house voted 214 to 212 in favor of the reconciliation bill Tuesday, following the Senate’s 52-47 vote last Friday morning. The vote fell largely along party lines. Sen. Lisa Murkowski (R-AK) was the only Senate Republican to vote against it. Rep. Tim Walberg (R-MI), initially voted against the bill — meaning it would have failed — but changed his vote after huddling with House Majority Leader Steve Scalise (R-LA) and Appropriations Chair Tom Cole (R-OK), according to The Hill. No Democrats voted in favor of the funding bill, which was done through a budget reconciliation process to avoid a Democratic filibuster.
In a speech on the House floor ahead of the Tuesday vote, Rep. Mary Gay Scanlon (D-PA) criticized Republicans for using the budget reconciliation process to avoid negotiating with Democrats, and emphasized ICE’s lack of popularity with the American people.
“At its core, this Republican reconciliation budget bill is a statement about priorities, and the priorities represented in this budget bill could not be more out of step with the needs and values of the American people,” Scanlon said.
Scanlon noted that DHS has yet to spend $100 billion of the nearly $200 billion it received under Trump’s One Big Beautiful Bill Act. She added that Trump has not only expanded ICE’s reach by increasingly going after legal immigrants but also weaponized DHS against its critics. The bill, she said, will “supercharge” Trump’s abuses.
After the House markup last Friday, Rep. Rosa DeLauro (D-CT), ranking member of the House Appropriations Committee, noted that the bill not only lacks sufficient reforms but also cuts funding for cybersecurity and TSA, whose workers went weeks without pay during the DHS shutdown.
The funding bill comes at a time of deep unpopularity for ICE. One recent poll found that just 33 percent of voters approve of how the agency is doing its job.
And it comes amid yet another threat from border czar Tom Homan to flood New York City with ICE agents. In an interview with Fox News on Monday, Homan said he would send “more ICE agents than you’ve ever seen” to New York City if the state government passed a bill limiting cooperation with DHS.
“Providing a quarter trillion dollars to an administration promising that the public ‘ain’t seen shit yet’ when it comes to mass deportation is a historic mistake,” Todd Schulte, president of the immigration reform group FWD.us, said in a statement. “Supercharging the funding for these already out of control systems will come with terrible human consequences and continue to be met with increasing opposition from voters.”
Correction, June 9th: A previous version of this story said Rep. Tim Walberg voted against the funding bill. He initially voted against it but then changed his vote to support it.
Update, June 9th: This story has been updated to include comment from FWD.us president Todd Schulte.
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