On Monday night, a report came that film editors around Los Angeles who had Avid Media Composer software installed had been all of the sudden findings that their Macs have been unable to reboot. The publication speculated that malware could have been the trigger. On Wednesday, Google disclosed the exact cause a Chrome browser update.
Mainly, it was a new version of Chrome’s Keystone updater that caused so many Macs to cease rebooting, based on this Chrome open bug post. When the update was installed on Macs that had disabled a security feature referred to as system integrity prevention and met many other conditions, a vital a part of the Mac system file was damaged, a Google employee mentioned in the forum.
“This appears to be a difficulty with a new version of Google Keystone,” a different Google employee wrote earlier in the thread. “We’ve halted the rollout and are working on remediation right now.”