Some Users Experiencing Issues In File Sharing After macOS Security Update, Here’s How To Fix It


Apple spontaneously released an update for macOS this morning that catered a major security vulnerability. Even though the issue was solved following the update, another issue appeared that distorted file sharing. Apple in its support document today, detailed that some users have been experiencing issues connecting and authenticating when file sharing on their Mac. In addition to this, Apple has also devised a fix for the persisting issue. So let's dive in to see some more details on the matter.

Apple Devises Fix For The File Sharing Issue That Appeared After The Critical macOS Security Update

The issue was not present before as it started to appear after the company rolled out its critical security update. The issue seems to only affect users who have updated their Macs on the macOS High Sierra 10.13.1 firmware. If you're someone who has run into the issue, Apple has devised a fix for the file sharing issue on the Mac. The fix involves using Terminal so do check it out.

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If you experience issues with authenticating or connecting to file shares on your Mac after you install Security Update 2017-001 for macOS High Sierra 10.13.1, follow these steps to repair file sharing:

  1. Open the Terminal app, which is in the Utilities folder of your Applications folder.
  2. Type sudo /usr/libexec/configureLocalKDC and press Return.
  3. Enter your administrator password and press Return.
  4. Quit the Terminal app.

As it has been coined, the issue has appeared after Apple's decision to fix the critical "root" security hole. However, if you have not updated your Mac with the security fix, we would recommend you to do so. The file sharing issue is not that big of a deal but only a small price to pay. Nonetheless, updating your device with the serious security update will definitely keep your machine safe. You can quickly fix the file sharing issue so it's not a problem.

Security is a top priority for every Apple product, and regrettably we stumbled with this release of macOS.

When our security engineers became aware of the issue Tuesday afternoon, we immediately began working on an update that closes the security hole. This morning, as of 8 a.m., the update is available for download, and starting later today it will be automatically installed on all systems running the latest version (10.13.1) of macOS High Sierra.

We greatly regret this error and we apologize to all Mac users, both for releasing with this vulnerability and for the concern it has caused. Our customers deserve better. We are auditing our development processes to help prevent this from happening again.

The critical security flaw basically allowed individuals to access and change personal files on your Mac, given the access should be physical. Apple has acknowledged and apologized for the vulnerability. Do make sure that you update your device.

This is it for now, folks. What are your thoughts on the file sharing fix devised by Apple? Have you updated your Mac with the serious security update? Share your views with us in the comments.