The best element in online security is the human element. This statement means that you are the best or worst asset in protecting your data. One of the most common ways to get into trouble with ads is by clicking on and interacting with unknown ones. For example, many users receive warning ads that their computers or phones are compromised. These advertisements create a sense of urgency and play on the user's fear, making them more likely to open the ad, provide banking details, and even allow remote access to fix a problem that doesn't exist. For the sake of security, the advertisements themselves likely won't do anything but slow down the web page. It's advised not to click on them to prevent any issues.