The first search result is not always the safest one.
When you search for software, a bank, or a Microsoft 365 login, an ad often appears at the top of the page. It may use the right brand name and show a web address that looks real.
Many people click that first result without thinking. Scammers know this. They buy search ads that copy trusted companies and popular software. Their fake site can then appear above the real website.
One click may lead to a fake login page that steals your password. It may also lead to a download that installs malware.
The simplest defense is to skip sponsored results. Go to the company’s real website yourself or use a trusted bookmark.
What Is Malvertising?
Malvertising is short for malicious advertising. It happens when criminals use online ads to lead people to harmful websites.
A scammer may buy an ad for a trusted search term. That term could be the name of a bank, Microsoft 365, or a common tool such as a PDF reader or video player.
The ad looks like a normal search result. It may display the real company name and a web address that seems correct. It also appears at the top of a search the user chose to make.
When the user clicks, the ad opens a fake website. The site may copy the design of the real login or download page.
From there, the scam can take one of two common paths. The fake site may collect login details, or it may offer a harmful file disguised as real software.
How Fake Search Ads Steal Login Details
A worker needs to sign in to an account. Instead of using a bookmark, the worker searches for the login page.
A sponsored result appears first. It displays the name of the bank, Microsoft 365, or another trusted service. The worker clicks it and sees a familiar-looking sign-in page.
The worker enters a username and password. Those details go to the scammer instead of the real service.
The page may then show an error or send the worker to the real website. The worker may think the first login failed and try again. Meanwhile, the scammer already has the first set of details.
This kind of attack does not begin with an unexpected email or text. It begins with a search the worker started. That makes the page feel safer than it is.
How Malvertising Spreads Malware
Another version of the scam targets software downloads.
A worker searches for a common program. The top ad appears to lead to the maker’s official website. The page copies the real brand and offers the expected download.
The file is not the real program. It contains malware.
Security researchers have found scam search ads that copied popular software such as VLC, 7-Zip, and CCleaner. Similar ads have also copied Google’s own apps.
The harmful downloads installed password-stealing malware. These attacks target normal searches that workers make every day.
Why Fake Search Ads Are Easy to Trust
They Appear Above the Real Website
Search ads often sit at the top of the page. The normal results appear below them.
People are used to choosing the first result. A high position can feel like a sign of trust, even though it only means the advertiser paid for that space.
They Use Familiar Brand Names
A fake ad can show the name of the real company or program. It may use wording that looks official.
The web address shown in the ad may also look right at a quick glance. Small changes can be easy to miss when someone is busy.
The User Started the Search
People are often cautious when an unexpected email asks them to click a link. They may feel less concern when they search for the site themselves.
That sense of control helps the scam. The user thinks they found the page on their own, so they may not stop to check it.
Scammers Can Hide From Ad Reviews
Search companies review ads and remove many that break their rules. Scammers still find ways to get harmful ads approved.
One method is to show ad reviewers a clean page. Normal users see a different page that steals information or spreads malware.
This lets the ad pass an early check while still causing harm after it goes live.
How Common Are Harmful and Scam Ads?
Google’s 2025 Ads Safety Report shows the scale of the problem.
Google said it blocked or removed more than 8.3 billion ads that broke its rules. It also suspended 24.9 million advertiser accounts and removed 602 million ads linked to scams.
Those figures show that ad platforms take action at a huge scale. They also show how many bad ads criminals try to place.
Google noted that criminals now use AI to create fake ads faster. This can help scammers produce more versions and replace ads that are removed.
A sponsored label does not mean an ad is safe. It only identifies paid placement.
What Malvertising Means for Small Businesses
Small businesses face this risk during two common tasks: logging in and downloading software.
The Login Risk
A worker searches for a bank or Microsoft 365 login. The worker clicks the sponsored result and enters account details on a fake page.
The attacker may then use those details to enter the account. That could expose email, files, financial data, or other business systems.
The Software Download Risk
A worker searches for a program and clicks the first ad. The worker downloads and opens a file that appears legitimate.
The file may install information-stealing malware. This type of malware can take passwords saved in the browser. It can also steal browser cookies and session tokens.
A stolen session token may help an attacker enter an account even when multi-factor authentication is active.
One harmful download can place many business logins at risk, especially when the browser stores passwords for several services.
How to Protect Your Team From Scam Search Ads
Skip Sponsored Search Results
Teach staff to look for labels such as Sponsored or Ad. These results often appear above the normal listings.
Scroll past them. The company’s normal search result is usually lower on the page.
This simple habit avoids many fake ads before the worker ever reaches the harmful site.
Never Download Software From an Ad
Do not use a sponsored result to download a program. Type the software maker’s address into the browser or use the normal search result.
Check that you are on the official website before downloading anything. If you are unsure, ask your IT provider to supply or install the program.
A business can also limit who is allowed to install software. This reduces the chance that one mistaken download affects a company computer.
Bookmark Important Login Pages
Create bookmarks for the services your staff use often. These may include your bank, Microsoft 365, and other important business accounts.
Use the saved bookmark instead of searching each time. This removes the need to choose between an ad and the real result.
Your IT provider can give staff a set of approved links if the business uses many online tools.
Keep Browsers and Devices Updated
Turn on automatic updates for computers and browsers. Updates close known security flaws that malware may try to use.
Current software cannot stop every bad download. It can still make some attacks less likely to work.
Explain the Risk to Your Staff
Many people do not know that a top search result can be a scam. A short warning can change how they use search engines.
Show staff where the Sponsored or Ad label appears. Explain that the label does not mean the website has earned trust.
Give them one clear rule: do not use an ad to log in or download software.
Consider a Reputable Ad Blocker
A reputable ad blocker can hide many sponsored results. This removes some fake links before a worker can click them.
An ad blocker is not a complete defense. Staff should still use bookmarks, official websites, and safe download habits.
What to Do After Someone Clicks a Scam Ad
If the Person Only Opened the Page
Close the page. Do not enter any details, click more links, or download a file.
If the page behaved in an unusual way, tell your IT provider what happened. Share the search term and the website address if you can do so safely.
If the Person Entered a Password
Change the password right away. Use the real website through a trusted bookmark or known address.
Turn on multi-factor authentication if it is not already active. Tell your IT provider so they can check the account for unknown access.
If the same password was used for other accounts, change those passwords too. Each account should have its own password.
If the Person Downloaded and Opened a File
Disconnect the device from the network. Unplug its network cable and turn off Wi-Fi.
Call your IT provider and explain what was downloaded and opened. The device may need to be checked for information-stealing malware.
Do not use the affected computer to change passwords. Use a device you know is clean.
Frequently Asked Questions
Are Ads at the Top of Google Checked and Safe?
Google reviews ads and removes billions that break its rules. However, scammers still get some ads through the review process.
They may show reviewers a clean page while showing other people a harmful one. A Sponsored label does not prove that a site is safe.
What Is Malvertising?
Malvertising means malicious advertising. Scammers buy online ads that use trusted names and send people to fake websites.
Those sites may steal login details or install malware.
How Can I Download Software Safely?
Go to the software maker’s official website. Type the address yourself or use the normal search result instead of an ad.
Do not download software through a sponsored result. Ask your IT provider for help when you are unsure.
What Should I Do After Clicking a Fake Ad?
If you only visited the page, close it and do not enter anything.
If you entered a password, change it through the real website and turn on multi-factor authentication. Tell your IT provider.
If you downloaded and ran a file, disconnect the device from the network and have your IT provider check it for malware.
Does an Ad Blocker Help?
Yes. A reputable ad blocker can hide many sponsored results. That can prevent people from clicking fake ads.
It does not replace safe habits. Continue to use bookmarks and official download pages.
Make Safe Search Habits Part of Your Security Plan
Fake search ads work because they appear at the right moment. They show up when a worker is already looking for a trusted service or useful program.
Protect your business with a few clear habits. Skip sponsored results. Use bookmarks for important accounts. Download software only from official websites. Keep devices updated and report mistakes quickly.
Your IT provider can also limit software installation and show staff how to identify paid results. We can help you put these protections in place.
