Here at DubLow Digital, we believe that staying informed is the first step in defending against cyber threats, especially for small businesses in Colorado. One of the most common and increasingly dangerous types of malware today is “malvertising.” It can appear anywhere—from social media feeds to search engine ads—and has become more deceptive thanks to advances in AI technology. In the fall of 2023, malvertising rose by 42% monthly, according to Malwarebytes, making awareness more crucial than ever.
In this guide, we’ll explain what malvertising is and provide essential tips to help you recognize and avoid these harmful ads.
What Is “Malvertising?”
Malvertising involves using online ads for malicious purposes. A perfect example of this occurred when the PlayStation 5 was first released. The high demand made it a prime target for cybercriminals, who created ads that seemed to lead to official sites but instead redirected users to fraudulent pages designed to steal login credentials and payment information.
Although Google makes efforts to monitor and remove malicious ads, hackers can sometimes have their ads displayed for hours or even days before they are taken down. Malicious ads can also be found on hacked legitimate websites and across social media.
Tips for Protecting Yourself from Malicious Online Ads
1. Review URLs Carefully
Always double-check the URL of an online ad before clicking. Like phishing, malvertising often relies on fake websites that look almost identical to legitimate ones. Be cautious and scrutinize any links that look slightly off.
2. Visit Websites Directly
A great way to stay safe is to avoid clicking on ads altogether. Instead, navigate directly to the brand’s official website. If there is a real offer or sale, you’ll find it there. This practice is helpful for avoiding all types of phishing attempts—always go straight to the source.
3. Use a DNS Filter
A DNS filter can prevent you from accessing dangerous sites even if you accidentally click on a malicious link. It will redirect your browser to a warning page when it detects harmful content, keeping you safe from malvertising.
4. Do Not Log in After Clicking an Ad
If you click an ad and are redirected to a login page, do not enter your credentials, even if the site looks legitimate. Instead, open a new browser tab and visit the brand’s website directly to log in.
5. Don’t Call Phone Numbers from Ads
Malvertising can also target you through phone numbers provided in ads. Scammers use fake representatives to collect personal information over the phone. Avoid calling any numbers listed in online ads—always look up the official contact details from a reliable source.
6. Avoid Downloads from Ads
If you see ads offering “free” downloads like MS Word or PC cleaners, they are often scams designed to trick you into downloading malware. Avoid clicking any download links from ads—always get software directly from trusted sources.
7. Warn Others When You Spot Malvertising
If you encounter a suspicious ad, warn your friends, family, and colleagues. Sharing your knowledge helps create a more cyber-aware community, reducing the risk for others. You can also search for scam alerts online to confirm your suspicions.
Improve Your Online Security Today
Is your device updated with the latest security patches? Do you have a reliable anti-malware solution? Is DNS filtering installed to block dangerous websites?
If you’re unsure about any of these questions, reach out to us at DubLow Digital. Our cybersecurity experts are ready to help small businesses in Colorado find affordable solutions to secure their online environments.
Give us a call or email us today to schedule a conversation about improving your online security.
