MacOS Sequoia Update Breaks Security Tools and Network Connectivity Causing Cybersecurity Chaos
Apple's latest macOS 15 Sequoia update is causing a wave of issues with popular cybersecurity products, leaving many users frustrated and exposed to potential vulnerabilities. Since its release last week, numerous reports have surfaced highlighting how this update has disrupted not only security tools but also network connectivity, affecting users across the globe.
Table of Contents
Cybersecurity Tools Affected by the macOS Sequoia Update
The macOS 15 Sequoia update has been particularly problematic for major cybersecurity vendors like CrowdStrike, ESET, Microsoft, and SentinelOne. Users report that their network connections stopped working after the update, and the only temporary fix was to disable the affected security tools.
CrowdStrike, a leading provider of endpoint protection, has advised customers against updating to macOS Sequoia. Citing changes to the network stack, the company notified Apple of the compatibility issues but warned that a solution is not expected anytime soon. The Massachusetts Institute of Technology (MIT) echoed this sentiment, specifically cautioning users that the CrowdStrike Falcon product is not yet supported on Sequoia.
ESET, another key player in cybersecurity, has also warned its customers about the impact of Sequoia on network connections. The company stated that only ESET Endpoint Security version 8.1.6.0 and later, and ESET Cyber Security version 7.5.74.0 and later, are compatible with macOS 15 Sequoia.
SentinelOne, which initially noted compatibility problems shortly after the macOS update was released, has since announced that its products now support the new operating system. However, many users are still cautious about upgrading.
Microsoft’s Network Protection Warning
One of the most severe disruptions caused by the Sequoia update comes from Microsoft's Network Protection feature. The company reported that the macOS Sequoia version 15.0 could cause network extensions to crash when Network Protection is enabled. This, in turn, leads to intermittent network connectivity, leaving end users struggling to stay connected. Microsoft has advised organizations relying on Network Protection to hold off on updating to macOS Sequoia.
Network and Browser Issues Pile Up
The Sequoia update hasn't just crippled cybersecurity tools; it has also led to broader connectivity issues. Reports show that VPNs, RDP connections, and web browsers have all encountered problems after the update. Some users have found that their browsers no longer work correctly, either while navigating the web or when downloading files. These connectivity problems appear to stem from changes in macOS Sequoia’s firewall settings, which can start blocking access to web browsing after the upgrade, according to security researcher Wacław Jacek.
Security researcher Will Dormann suggests modifying firewall rules to address the network problems, but warns that loosening the firewall rules may expose users to greater security risks. This workaround could leave sensitive data vulnerable while restoring internet functionality.
Apple Knew About These Issues
Notably, Apple was reportedly informed of these issues before releasing macOS Sequoia to the public. Renowned Apple security researcher Patrick Wardle claimed that multiple users had already alerted Apple to these problems before the update became generally available. Despite the warnings, Apple still rolled out the macOS Sequoia update, leaving many users in a bind as they wait for official fixes.
What Should You Do?
If you rely on cybersecurity tools from CrowdStrike, ESET, Microsoft, or SentinelOne, you may want to avoid updating to macOS Sequoia for now. Keep an eye out for patches from Apple and the security vendors themselves. Meanwhile, be cautious when modifying firewall rules, as you could be opening up new security risks while trying to fix network connectivity problems.
As the dust settles on the macOS Sequoia release, it's clear that this update has created more headaches than enhancements, especially when it comes to keeping your system secure. For now, users are left to navigate a difficult balancing act between security and functionality.