10/02/2026
Watch Out for Online Ad Scams
Online ads are everywhere. Cybercriminals can use these ads to spread malware, steal personal information or direct people to scam websites. This tactic is known as malvertising, or malicious advertising. And because these harmful ads can look legitimate and appear alongside normal content on trusted websites, they can be difficult to recognize.
The National Cybersecurity Alliance recommends taking these steps to reduce your risk:
Keep your software up to date by installing updates for your operating system, browser, and apps and by turning on automatic updates.
Use reputable antivirus and anti-malware security software to detect and block harmful downloads.
Think before clicking an ad. Even trusted sites can have unsafe ads so search for the company or product yourself and visit its website directly. Avoid downloading browser extensions when an ad or website unexpectedly prompts you to do so.
Use a secure browser that can identify potentially dangerous websites and block known harmful content.
Avoid suspicious websites. When choosing apps or browser extensions, read the details carefully and check reviews to make sure you're choosing the real product.
Use strong passwords and multi factor authentication to provide additional protection if criminals attempt to steal your login information.
For more tips and resources to help you stay safe online, visit the National Cybersecurity Alliance website.
The National Cybersecurity Alliance is a non-profit organization on a mission to create a more secure, interconnected world. Browse our library of online safety articles and resources and connect with industry experts and educators.
