Apple is said to be preparing a major overhaul of Siri for iOS 27 as part of its artificial intelligence (AI) efforts, and at the forefront could be the standalone app. The Cupertino-based tech giant is expected to unveil its next-generation operating system for iPhone and other devices at WWDC 2026. Ahead of the developer conference, a seasoned journalist has suggested that Apple will heavily position privacy as the defining feature of its AI strategy, and one of its defining features could be automatic chat deletion.