On Monday, Apple released its latest computer operating system update called macOS 15, or Sequoia. And, somehow, the software update has broken the functionality of several security tools made by CrowdStrike, SentinelOne, Microsoft, and others, according to posts on social media, as well as messages posted in a Mac-focused Slack channel.

At this point, it's unclear exactly what is the issue, but appears to affect several products made by companies that provide software for macOS users and enterprises, which has caused frustration among people who work on and with macOS-focused security tools.

"As a developer of macOS security tools, it's incredibly frustrating to time and time again have to deal with (understandably) upset users (understandably) blaming your tools for breaking their Macs, when in reality it was Apple's fault all along," said Patrick Wardle, the founder of Mac and iOS security startup DoubleYou, and a longtime expert on macOS security.

"I get it, that writing bug free software is challenging, but maybe if Apple spent less time and money on marketing, and more time on actually testing their software, we'd all be better off!" Wardle told TechCrunch.

On the day of macOS Sequoia's release, a CrowdStrike sales engineer said in a Slack room for Mac admins that the company had to delay support for the new version of Mac's operating system. "I'm very sorry to report that we will not be supporting Sequoia on day 1 in spite of our intention (and previous track record) to support the latest OS within hours of [General Availability]," the engineer said in the message, seen by TechCrunch.

The engineer also said CrowdStrike sent out a "Tech Alert" to customers, adding that "there's quite a lot going on with the changes in the network stack."

"We're also tracking some similar issues with other vendors, and have feedback and a case in to Apple. While we would love for there to be a fast-follow patch that resolves this for us, we're acting under the assumption there won't be and we'll need to fix it in our code with a sensor release," the sales engineer wrote.