Following the release of macOS Mojave 10.14.6 on Monday, Apple has released Security Update 2019-004 (Sierra) and Security Update 2019-004 (High Sierra) as well. Both updates contain security patches also found in macOS Mojave 10.14.6. Security Update 2019-004 (Sierra) is a 927.6MBÂ download. You can also install it through Software Update on your Mac running Sierra. […]