It's Apple device update time: the company has released new security updates for the iPhone, iPad and Mac which you can download now.
The update for Safari is 11.0.2 while the iOS update for iPhone and iPad is iOS 11.2.2. Both updates are designed to protect Safari and WebKit from the Spectre vulnerability.
Patches for Meltdown have already been released for iOS, macOS as well as tvOS.
The company has yet to reveal whether it will issue another patch in future to address any vulnerabilities in Apple's own processor.