We test for this by launching various attacks of our own - deleting files, closing processes, disabling services, more - and checking to see if our performance remains intact. Malware may try to disable antivirus before attempting to infect a system, so a good security app needs to be able to protect itself.
That's significantly more than Kaspersky (0.6%) and Bitdefender (1%), but much the same as Sophos Home (3.8%) and Trend Micro (4%), and you're unlikely to notice any difference in real-world use. We run top benchmark PCMark Professional before and after installation to check for any performance impact, and Malwarebytes reduced our score by 3.8%. We were offered the chance to have a 14-day trial of Malwarebytes Premium, and although this requires handing over an email address, there were no other hassles of any kind (we didn't even have to confirm our email.)Ĭhecking the Malwarebytes installation folders showed a relatively lightweight package with around 400MB of files, and just a couple of significant background processes. Malwarebytes installs quickly and easily.
