Resolved: Mac OS X 10.11.4 Beta causing issues with On-Access Scanning and Automatic Virus Protection

RESOLVED: Apple has released a new version of Mac OS X 10.11.4 Beta that resolves this issue. In addition, there will be an update released soon that resolves the issue as well. 

Thank you for your patience in resolving this matter!

Hi Everyone!

Our Engineers have confirmed that the Mac OS X 10.11.4 Beta is causing an issue with Sophos Home's On-Access Scanning and Automatic Virus Protection (in addition to other Sophos Mac products).

It has been brought to the attention of the engineers and they are currently working on this issue.

bobcook said:

...It appears that Apple has done something new in 10.11.4 - could be a bug, could be a new feature, only Apple seems to know. We are working to understand the root cause, and get a fix (if required) out quickly.

...it's possible Apple has silently introduced new requirements, like they did to everyone in 10.9.5.

While there is a temporary fix that involves disabling System Integrity Protection, this does have the disadvantages that come with disabling SIP.

Cheers,

DJ Kim

Source of discussion and quote: https://community.sophos.com/products/free-antivirus-tools-for-desktops/f/17/t/73916