Anyone with physical access to your Mac with macOS High Sierra 10.13.2 is able to access and change your App Store settings in System Preferences without entering a legitimate password.
macOS High Sierra 10.13.2
macOS High Sierra 10.13.2 release notes
On December 6, 2017, Apple released macOS High Sierra 10.13.2 to the public following a month of testing. The free software update brought under-the-hood enhancements, but no new user features or other outward-facing changes were added in the release.
Apple releases macOS High Sierra 10.13.2
Apple on Wednesday released macOS High Sierra 10.13.2 to the public, after a month of testing. This marks the second update for macOS High Sierra, and it can be installed via the Updates tab in the Mac App Store.
macOS High Sierra 10.13.2 beta 6 includes a fix for root password vulnerability
As expected, a sixth beta of macOS High Sierra 10.13.2 that was seeded today packs in a fix for the dangerous root password vulnerability that yesterday's emergency update has already patched on Mac computers running the commercial macOS High Sierra 10.13.1 version.
Apple seeds sixth betas of iOS 11.2 and macOS 10.13.2
Apple on Friday released the sixth betas of iOS 11.2 and macOS 10.13.2. Registered developers can install the new betas from Apple's Developer Center, or by using each platform's respective over-the-air update mechanism.
Apple seeds fifth betas of iOS 11.2, tvOS 11.2, and macOS 10.13.2
Apple on Tuesday released the fifth betas of iOS 11.2, tvOS 11.2, and macOS 10.13.2. Registered developers can install the new betas from Apple's Developer Center, or by using each platform's respective over-the-air update mechanism.
Apple seeds macOS High Sierra 10.13.2 beta 4 to developers
Apple on Thursday seeded a fourth beta of macOS High Sierra 10.13.2 to its registered developers and members of the paid developer program, with a matching public beta coming shortly to those who are enrolled in Apple's Beta Software Program.
Apple releases third betas of iOS 11.2, macOS High Sierra 10.13.2, watchOS 4.2 & tvOS 11.2
Apple today seeded third betas of iOS 11.2, watchOS 4.2, macOS High Sierra 10.13.2 and tvOS 11.2 to its registered developers and members of the paid developer program, with a matching beta for public beta testers enrolled in the Apple Beta Software Program expected shortly.
Apple releases first beta of macOS High Sierra 10.13.2 for developer testing
Apple today released the first beta of what would become the macOS High Sierra 10.13.2 software update. It's available to Apple's registered developers and Appleseed participants.