Apple’s latest iOS 18.4 update comes with more than just performance fixes—it includes a serious warning aimed at iPhone users as well. As the update rolls out globally, Apple has emphasized the importance of checking privacy and security settings. While most updates arrive quietly, this one is getting attention for its implications on how users manage their data and app access.

iOS 18.4 adds new app tracking transparency alerts

One of the standout features of iOS 18.4 is a stronger push toward App Tracking Transparency. Users will now receive clearer notifications when apps request permission to track behavior across other apps and websites. Apple urges users to review these permissions and make changes where needed. The warning is simple: if you’re not actively managing your privacy, you could be sharing more than you intend.

Apple’s security message isn’t just routine

Unlike past updates that focused on technical bugs or battery life, iOS 18.4 highlights user behavior and characteristics. Apple is reminding users to double-check their privacy settings, app permissions, and account security. This comes in response to ongoing concerns about third-party apps collecting data without full transparency.

iOS 18.4 also includes performance improvements

In addition to the security messaging, the update brings general improvements to iOS performance. Users should notice smoother animations, fewer app crashes, and better stability on older devices. However, these changes are secondary to Apple’s louder message: your privacy deserves regular attention.

Time to review your iPhone settings

With the update now live, iPhone users are encouraged to head into their settings and take a closer look. From app tracking permissions to location services, iOS 18.4 gives users the tools—but it’s up to them to use them. Apple’s warning is clear: staying secure isn’t just about installing the update, it’s about what you do next.