macOS is Apple’s desktop operating system, whose vulnerabilities, security updates, and software ecosystem affect device protection and data security.
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Background for this topic.
macOS is the desktop operating system for Mac computers. Its security model combines signed-code checks and notarization through Gatekeeper, built-in malware detection, application sandboxing, System Integrity Protection, and privacy controls that restrict access to files, cameras, microphones, and other sensitive resources. FileVault can encrypt the startup volume, reducing exposure if a device is lost, although it does not protect data from an attacker using an unlocked account.
For security teams, macOS is an endpoint whose risk depends on timely operating-system and application updates, configuration, and user permissions. Vulnerabilities in macOS components, browsers, or widely deployed software can enable code execution or privilege escalation, while malicious or over-permissioned applications may bypass intended isolation through user-approved access. Organizations should track supported versions, enforce updates and disk encryption through device management, limit administrative access, and preserve relevant logs for investigation; security controls and available telemetry can vary by macOS release and Mac hardware.
A lot of news broke this week related to ransomware, with the discovery of LockBit testing macOS encryptors to an outage on NCR, causing massive headaches for restaurants. [...]
In targeting Apple users, LockBit is going where no major ransomware gang has gone before. But it's a warning shot, and Mac users need not worry yet.
Threat actors behind the LockBit ransomware operation have developed new artifacts that can encrypt files on devices running Apple's macOS operating system
The LockBit ransomware gang has created encryptors targeting Macs for the first time, likely becoming the first major ransomware operation to ever specifically target macOS. [...]