What is a BSI? Is it the same as an RSR? How does it patch vulnerabilities, and how is it installed and activated? What problems does it have, and what are its limitations?
update
How a Content Caching Server can be used to supply an update. Preflight checks are extensive, and lead on to other preparation. Finally the boot chime is muted, and the Mac rebooted to allow installation.
Apple has just released its first public Background Security Improvement (BSI) for macOS 26.3.1 Tahoe, labelled as BSI […]
Apple has just released its regular weekly update to XProtect, bringing it to version 5334. As usual it […]
SilentKnight relies on the system_profiler command for much of the key information it needs. But that output is localised to the primary language in use at the time. This continues to cause problems.
An important update for those expecting to update Apple silicon Macs to 26.4, as older versions may crash, and are expected to report firmware version errors.
Apple has just released its regular weekly update to XProtect, bringing it to version 5333. As usual it […]
How Software Update settings obtains a list of available updates, and the variants that should contain. How mobile asset catalogues are checked, and preparations made to download the update.
How SilentKnight came about, and how it knows – most of the time – which version of XProtect and other security data your Mac should be using.
Has Apple inadvertently released the full installer for macOS Sequoia 15.7.5? It’s only available as a full installer, not an update, but it’s real.
The Eclectic Light Company 