Matching it with the macOS Mojave 10.14.6 update released a week ago, Apple took the opportunity to launch security updates for macOS Sierra and macOS High Sierra. The security update receives the nomenclature 2019-004. From I am from Mac we always recommend updating any version, especially if it compromises the security of our equipment.
Instead, this time it caused a problem Kernel panic in the teams with the chip T1 and T2, when these come out of standby mode. This is a serious problem that blocks our computers. On this website we tell you the noticia, where you can find more detail.Immediately, Apple pulled the security update from its website and download from the App Store. Instead, this update has been available again for a few hours. We have taken a margin to check if users report any additional errors, but since they do not present significant errors, we recommend again to install the security update for Sierra and High Sierra with the numbering 2019-004. This update can be installed from the Mac App Store or by downloading it from the Apple website.
The problem in particular occurred when the Mac came out of standby mode. At that time, a general system error occurred. Interestingly, the affected users indicated that the error occurs in a MacBook Pro. We link you some Apple forums that detail the problem that is occurring on your computers.
Apple caters for any software problem and of course about security flaws of the computer in the current operating system and the two previous ones. For example, you are currently serving macOS Mojave, but also macOS High Sierra and MacOS Sierra. We can say that the vast majority of Macs that are used at the moment have, or at least can support macOS Sierra. Hence, Apple caters for most running Macs. Any news regarding security updates, we will keep you informed.