A few critical security updates also shipped out with Tuesday’s macOS High Sierra 10.13.1 update.
Apple also released Security Update 2017-004 and Security Update 2017-001 macOS Sierra, which address the KRACK security exploit.
KRACK is a vulnerability in the WPA2 encryption standard for Wi-Fi networks that lets attackers decrypt the data passing to and from a specific device. The vulnerability exists in most any device capable of using WPA2 on Wi-Fi networks and once it was publicly disclosed product manufacturers started scrambling to release patches.
The updates can be located, downloaded and installed via the Mac App Store’s “Updates” section provided you’re running macOS 10.11 or later.
Stay tuned for additional details as they become available.
Via The Mac Observer