How the quarantine flag for apps and that for docs opened in sandboxed apps differ, and why there are now so many quarantine flags to trip us up.
quarantine
Have you noticed quarantine flags appearing on movies and PDFs which have never been downloaded? Here’s a possible explanation.
Apple’s latest information on notarization can appear alarming and contradictory. Do you need to notarize your own apps and scripts? More helpful guidance.
Apple has just warned developers that rules on notarization will change in macOS 10.14.5. Will users be affected?
XProtect’s data files haven’t been updated since 13 March 2018 – a period of 120 days. Is it being replaced in Mojave? What happens to those still using High Sierra and earlier?
The greatest skill in memory is not the remembering, but knowing what to forget – something that macOS is useless at. Why doesn’t it clear out its old crud?
The File menu has been tidied, and xattred can now save the one xattr selected or all of them to a text file.
How the two user modes differ, what iCloud Drive does to files transferred between two different clients, and an apparently unique tag it applies to apps which pass through.
General account of xattrs, their storage, types, tools for working with them, and common problems.
This UTF-8 string contains the Gatekeeper score, the system time of download, downloading agent, and the event UUID. Can force a full Gatekeeper check.
The Eclectic Light Company 