Apple Introduces Liquid Intrusion Detection System for Macs
By Pierre Herubel

Apple has unveiled a new system in macOS Sonoma 14.1 that can detect if a Mac has been damaged by liquid entering via a USB port. The system, known as ‘liquiddetectiond’ or the ‘Liquid Detection and Corrosion Mitigation Daemon,’ runs in the background and monitors the USB ports on the host Mac for any signs of liquid presence.

This development is significant because Apple’s warranty does not cover liquid spills inside devices, including MacBook laptops. Therefore, if a laptop owner experiences a drink-based disaster or accidentally drops their MacBook in water, resulting in the device becoming inoperable, Apple will be able to identify the cause and reject any claims for a faulty replacement.

In addition to the new ‘liquiddetectiond’ daemon, Macs also come equipped with Liquid Contact Indicators that can detect spillages or other liquid-based accidents. This extra line of defense further protects the devices from liquid damage.

Interestingly, Apple’s iPhones and iPads already have a similar liquid detection feature. However, in those devices, the system can warn users about the presence of liquid in a port and advise them to unplug the device if it’s charging. In contrast, the macOS Sonoma system does not issue similar warnings. It appears to be primarily designed for Apple to analyze damaged Macs and may evolve to include warning notifications in the future.

It is anticipated that this liquid intrusion detection system will debut in the upcoming M3 Macs. Whether it will be introduced for older models depends on whether it requires additional hardware components in the USB ports to facilitate detection.

For iPhone owners, the liquid detection system has had some issues in the past, with false detections and warnings being reported. These problems have often resolved themselves, potentially through software updates or simply cleaning the USB port to remove dust or particles that may trigger false positives. It is essential, however, to exercise caution when cleaning ports and avoid using metal objects that could cause damage.

Apple continues to prioritize user experience and device protection through innovative technology. The introduction of the liquid intrusion detection system reinforces the company’s commitment to maintaining the integrity and longevity of its products.

Sources:
– TechRadar: Apple introduces liquid detection system for Macs
– 9to5Mac: macOS Sonoma 14.1 includes new liquid detection daemon