The release of macOS Sequoia has broken the functionality of some networking and security tools from companies like Microsoft, CrowdStrike, SentinelOne, and more.
Affected users are reporting issues with security software, firewalls, SSL failures, and the inability to use certain commands.
ESET has provided suggestions to fix the issues, while CrowdStrike and SentinelOne have advised users not to upgrade to macOS 15 Sequoia.
The cause of the problem is speculated to be an outdated feature in macOS 15's Firewall, and this is not the first time Apple has released an OS that causes problems for third-party security tools.