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Explainer: Quarantine

Quarantine flags first appeared in 2007. This explains how they work, what they do, and the differences between app and document quarantine.

December 11, 2021 Macs, Technology

There’s more to files than data: Extended Attributes

All about xattrs: their origin, where they’re stored, how they’re named and typed, how to find and work with them, and their common problems.

October 24, 2020 Macs, Technology

Last Week on My Mac: Nobbled and hobbled by notarization

Who’s been ghost notarizing other people’s apps, and is Catalina wasting time to check whether shell scripts are notarized?

May 24, 2020 Uncategorized

Which extended attributes does iCloud preserve, and which get stripped?

Some files rely on these to work properly. What happens when you share such a file using your iCloud account? The answer isn’t simple, but here are full details.

March 18, 2020 Macs, Technology

Quarantine, SIP, and MACL: macOS per-file security controls

The behaviour of quarantine flags, SIP flags, and the mysterious new com.apple.macl attribute, which never ceases to puzzle.

January 30, 2020 Macs, Technology

Diagnosing privacy protection problems in Catalina

T T Read More

Tips to help you investigate and tackle problems arising in Catalina with its new privacy protections, particularly those of folders such as Documents.

January 7, 2020 Macs, Technology

Last Week on My Mac: Catalina users caught in a game of chance

T T Read More

When it comes to basics, we like consistency. Imagine what life would be like if every so often […]

January 5, 2020 Macs, Technology

Catalina’s privacy protection backfires again: why you can’t save a logarchive there

When you can’t save to somewhere else, only to your startup volume, even though you’ve shown user intent. Privacy through perversity perhaps?

January 3, 2020 Macs, Technology

Opening documents, SIP and quarantine flags in Catalina

T T Read More

How does Catalina’s new privacy protection extend to folders such as ~/Documents? New information fills in detail.

December 20, 2019 Macs, Technology
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