Apple's issued a new warning to iPhone users to update their phones, only a week after releasing iOS 14.5. You'll need to update to 14.5.1 in order to fix some big security issues on your phone, including what Apple's calling a "memory corruption issue" that is actively being exploited by hackers to get your info. The latest update also fixes other bugs affecting features like App Tracking Transparency, Apple Watch Unlock, Siri, and more.
It's easy to update your iPhone. Just go to your settings app, then click "general" and select "software update."