macOS Sequoia is a version of macOS used by Apple. This vulnerability allows an app to access sensitive user data due to a downgrade issue with code-signing restrictions. If your Mac uses this vulnerable version, you're at risk of having your personal data accessed without authorization.
You're affected if you use macOS Sequoia 15.7.3 or earlier.
Check with: system_profiler SPUSBDataType | grep "IOSerialPort" (Note: This command checks for the presence of a USB port, which is required for the vulnerability to be triggered.)
This is not related to Intel-based Macs using macOS Monterey or later versions.
Upgrade to macOS Sequoia 15.7.3 or later.
- For direct upgrade instructions, visit: https://support.apple.com/en-us/HT201222
- Immediate mitigations:
- Do not run any apps until you've upgraded your operating system.
- Monitor for unauthorized app access.