Background Service is Offline in Malwarebytes for Mac Support Forum Posted May 17, 2018 On 8/31/2017 at 10:54 AM, treed said: I think that we may have found the root of the problem, although we're still not sure exactly what caused it. It looks like folks have their system keychain set to an unusual "restricted" mode, which is related to the System Integrity Protection feature in macOS, and which should NOT be set for the system keychain. That would be a negative. I've tried this and others with the latest build on 10.13.4 and it's not resolving. The only other issue causing might be the enduser has filevault enabled on the Macbook in question. I tried this as "root" (I know, I know) and still didn't elevate or address this issue. Gatekeeper isn't showing the "allow MW to do xyz", either.