If you’re getting targeted with surprisingly relevant ads, there’s a chance your internet activity is being tracked and analyzed by market researchers. While this doesn’t bother most people, private browsing mode can offer you some protection against online marketers and would-be data thieves.

For all the time we spend discussing the complexity of internet security, there are a few simple things you can do. Avoiding websites that aren’t secured with the HTTPS protocol is one of them. It’s a habit that can be developed with a better understanding of what the padlock icon in your web browser’s address bar represents.

In the first week of 2018, security researchers announced that modern computer processors have a fundamental flaw called Spectre. If exploited, hackers could gain access to systems that store confidential information. And the most vulnerable to these attacks are outdated web browsers like Chrome, Safari, Microsoft Edge, and Firefox.

Even if you’re sure that the websites you visit are safe, harmful software can still slip through, especially when you download and install free programs and applications. As the world’s most popular browser, Chrome is especially prone to infection.