I have been using kasperky internet security since 2009 on different operating systems. But to my surprise recently i have been observing Kaspersky is freezing my mac and draining out battery and also could not block adds on different websites. I reported the issue to kaspersky support long back and they collected data from my mac.. asked me to reinstall the application. Even after reinstallation the problem persist then i asked them again to look in to the issue. Again they collected data from my mac book pro running on Mojave Os and declared there is a bug and it should be fixed. Almost since 4 months i am waiting for a solution and no solution yet. this is the complaint ID INC000010303749. I raised this issue at different forums to bring awareness in mac users about Kaspersky internet security.
So if you are on mac and planning to use internet security think again before you buy license.