On Monday Apple issued security updates fixing security vulnerabilities in iOS, macOS, and Safari.
iOS 10.2.1 is an extremely important update with over a dozen vulnerabilities being fixed with varying degrees of severity. Some being serious. You’ll want to run this update at your earliest convenience. This is a free update and can be downloaded over-the-air from your device.
macOS Sierra 10.12.3 fixes a variety of vulnerabilities as well as an update to Safari. This is a free update and can be downloaded from the App Store.
If you have an Apple watch or tv there are also security updates for those devices.
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