I think there's more than that to be done. Much more. Here in the USA, we've saddled ourselves with this evil thing called a "no-fly list". Nobody knows who is responsible for this list, or how you get on it, nor how you can get off it, or who you can sue for being put on it by mistake. The list has included young (like, too young to walk) children, politicians, and many completely innocent people. But if you're on this list, you're not allowed to board an airplane. And you can't get off the list. MAMB hos this secret no-fly list equivalent in their IP blocker. It needs to become completely transparent, with editable whitelists and blacklists, opt-out features and an explanation of why default blacklist sites are there. Years ago, a misguided organization called "blackhole" was created with the idea of isolating malicious sites. It was extended to email. Unfortunately it wasn't policed adequately, and addresses could be added in direct violation of its stated policies. To some users, "spam" included any email they didn't want now, even if they had signed up for it in the first place. To others, if they had any trouble removing themselves from a list they'd signed up for, well, that was now spam too. Using that list meant that other members of those lists, who did want that email, found it blocked. Things like job listings from HotJobs (then a viable organization) were being blocked because somebody somewhere was too clueless to figure out how to resign from the list, so decided to report it as spam to get it blocked. The list allowed this. HotJobs had to regularly demonstrate, AGAIN, that they weren't spammers and in the meantime people weren't seeing job listings. A blocklist is a weapon. If you can get a competitor's site onto the list, they can be badly hurt by it. Sure, you can say you're sorry and take them off of it after enough complaints, but the damage is done and you can't undo it or make it right again. A blocklist can all too easily become an instrument of oppression whether you intended it that way or not. You need to be terribly careful with a blocklist. You need to make it as open and as transparent as you possibly can, and you need to police it regularly, more often than daily. You need to make absolutely certain that every site on it belongs there, and you need to stand up for your mistakes when you make them instead of hiding behind anonymity. It's a full time job for more than one person, just to manage such a list adequately. Many have tried this and failed miserably. Anyone can already get most of this blocking functionality in the freeware PeerGuardian2. Anyone who wants it should install that. (I don't recommend it, I think this, like email blacklists, is a dead-end approach and have long ago uninstalled PG2 myself.) Malwarebytes should give this up, not try to go head-to-head with Bluetack/PG2 et al., in their area of specialization, and go back to malware. Malwarebytes doesn't have the time or the people to do this right, and it's better not done at all than done poorly. Thankfully, there's the registry edit so I can completely disable IP blocking in MAMB, but I think Malwarebytes should pull the IP blocking feature out of all future releases. This isn't their arena and they aren't equipped to compete in it.