This week it was discovered that macOS High Sierra had a huge security problem that dates back to a few months ago, from every part, and those from Apple were in no hurry to solve it. More precisely, anyone with access to a Mac could obtain administrator rights using the username root, but no login password.
Apple released a security update that solves this problem in macOS High Sierra, users of version 10.13 and those of version 10.13.1 being affected by the vulnerability. Although Apple solved the macOS High Sierra problem with that security update, those who update from macOS High Sierra 10.13 to macOS High Sierra 10.13.1 do not automatically benefit from it.
Users who update from macOS High Sierra 10.13 to macOS High Sierra 10.13.1 must reinstall that security update, but must restart their Macs. If I don't restart the Macs, then the problem persists even in macOS High Sierra 10.13.1, and anyone can access their data from Macs without problems.
Considering that many Mac owners use the functions that do not involve a total shutdown of the computers, it is necessary to know that they have to actually restart the computers to benefit from solving the security problem.
