Jamf’s 2025 Security 360 report reveals a significant surge in macOS malware, highlighting that trojans now account for over 50% of all detections across 1.4 million monitored devices.

Key Points

• Trojan malware detections increased by over 33% since 2024, now representing 50.32% of all Mac threats.
• Atomic Stealer is the dominant threat, responsible for approximately 77% of trojan activity and 78% of infostealer activity.
• Adware and Potentially Unwanted Applications (PUAs) have declined significantly, dropping to roughly 5% of total detections.
• Approximately 44% of analyzed devices experienced malicious network traffic, while 73% contained at least one vulnerable application.
• New threats like DigitStealer and MacSync Stealer demonstrate advanced techniques, including hardware-specific targeting and the use of notarized code to bypass security.

Why it Matters

The shift from adware to sophisticated infostealers indicates that cybercriminals are increasingly prioritizing data theft and long-term persistence over ad revenue. This trend forces organizations to move beyond basic security measures and adopt more robust, automated management strategies to protect sensitive enterprise data.