Now that I’m done with Kaspersky, it’s time to look at some other antivirus software. Our guest today is McAfee Total Protection 16.0. Let’s say this up front: it’s nowhere near the mess we’ve seen with Kaspersky. It doesn’t break up your encrypted connections, and the web protection component is limited to the McAfee WebAdvisor browser extension. So the attack surface is quite manageable here. The extension also uses native messaging to communicate with the application, so we won’t see websites taking over this communication channel.
Of course, browser extensions claiming to protect you from online threats have some rather big shoes to fill. They have to be better than the browser’s built-in malware and phishing protection, not an easy task. In fact, McAfee WebAdvisor “blocks” malicious websites after they already started loading, this being not quite optimal but rather typical for this kind of extension. I also found three issues in the way McAfee WebAdvisor 6.0 was implemented which made its protection far less reliable than it should be.