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Category Archive: Technology

Two ways to run background tasks: comparing launchd and GCD

Background activities scheduled by third-party software currently use launchd, and run the risk of affecting the user. Would GCD be a better choice of dispatcher?

May 5, 2017 Macs, Technology

Removing all your old backups: a tortuous tale of permissions and links

It’s tempting just to put the folder in the Trash. But this could be a quick way to acquire a more complex problem.

May 4, 2017 Macs, Technology

More new Mac malware expected soon: OSX.Snake?

Spring is obviously the season for the detection of new malware affecting macOS and OS X users. This […]

May 3, 2017 Macs, Technology

New and existing bugs in the unified log in Sierra 10.12.4-6

Significant bugs or undesirable features limiting log, Console, and os_log as of 10.12.4.

May 3, 2017 Macs, Technology

Beyond Scripting in Swift: Running background activities

Getting GCD to schedule and dispatch a packaged external task, like a backup, is actually straightforward. Here’s how.

May 3, 2017 Macs, Technology

Keeping Background Tasks in the Background: DispatchRider

An experimental tool to let you schedule background tasks of your own, which are managed by Grand Central Dispatch. First alpha release.

May 2, 2017 Macs, Technology

More new malware: OSX.Dok.B or OSX.Bella, but we’re already protected

Apple’s recent updates to XProtect and MRT covered not only OSX/Dok, the new Trojan discovered by Ofer Caspi […]

May 1, 2017 Macs, Technology

More bugs in Sierra’s log system, and a new release of Blowhole

Sierra 10.12.4 introduced undocumented changes in the log system which may break apps which write to the logs. Here is Blowhole fixed for that change.

May 1, 2017 Macs, Technology

Watching Grand Central Dispatch at Work

The aim is to be able to run commands at regular intervals using GCD rather than launchd. Here are details of the code and resulting log entries, casting light on how GCD works.

May 1, 2017 Macs, Technology

Apple pushes silent update to XProtect and MRT for OSX/Dok malware

Apple has, over the last 24 hours, pushed silent updates which address the threat from the latest OSX/Dok […]

April 30, 2017 Macs, Technology

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