Apple’s latest release, macOS Sequoia, has hit a snag: it’s causing headaches for users relying on various networking and security tools from companies like Microsoft, CrowdStrike, and SentinelOne. Reports from users on Reddit indicate issues with security software such as ESET Endpoint Security and CrowdStrike Falcon, leading to functionality breakdowns.
Common problems include firewalls that corrupt data packets, SSL failures in browsers, and issues with basic commands like “curl” and “get.” While users can temporarily resolve these issues by disabling the affected tools, this workaround isn’t ideal for many who rely on these security features.
CrowdStrike even sent a private bulletin advising users to hold off on upgrading to macOS 15 until a compatible sensor is available, highlighting the changes in the internal networking structures of Sequoia. SentinelOne provided similar guidance to its users.
ESET has responded with instructions for those experiencing problems, directing them to go to System Settings > Network > Filters to remove the ESET Network filter. However, this fix is only applicable for users with the latest versions of their software—specifically, Endpoint Security 8.1.6.0 or newer, and Cyber Security 7.5.74.0 or newer.
VPN services are also affected, with users reporting issues with Mullvad VPN and various corporate VPNs, though Proton VPN seems to be running smoothly on the new OS. Apple hasn’t officially commented on the matter, but a release note hints that an outdated feature in macOS 15’s Firewall might be the culprit.
This isn’t the first time Apple has encountered such compatibility issues with a new operating system. A similar situation arose with macOS Ventura, where third-party security tools faced disruptions. Security expert Patrick Wardle expressed frustration on LinkedIn, pointing out that this cycle seems to be repeating itself and suggesting the root of the issue lies in the macOS firewall or lower-level networking subsystems.
For those dependent on these security tools, it might be wise to wait before upgrading to macOS Sequoia. Fingers crossed that Apple will roll out a fix soon, allowing users to enjoy the latest features without compatibility worries!
