To cut down on warranty claims, Apple has added a background feature with macOS Sonoma that runs liquid detection analysis on every USB-C port on a Mac.
Back in 2010, Apple was sued over how it uses moisture indicators on iPhones to determine whether a user’s insistence they hadn’t dropped the device in water was true or not. The suit claimed the indicators weren’t accurate, and Apple lost the case, having to ultimately pay a $53 million settlement.
Quite possibly as a result of that, Apple in 2012 filed a patent application for a system to improve its water sensors. That filing specifically noted that it was being done because customers were frequently receiving replacements for products that were damaged in methods not covered under warranty.
Read more at AppleInsider.com