Simply put, Apple has fixed certain critical vulnerabilities, and it is now time to replace them. You may actually want to make some time for this one.

Apple released a series of major security updates for iOS (15.3) and macOS (Massive Sur 11.6.3, Monterey 12.2, and Catalina) on Wednesday, all of which are intended to fix critical holes in the operating systems. And, yes, it appears to be happening a lot more frequently right now.

The changes have an impact on Safari, macOS, tvOS, iOS, iPadOS, and watchOS. Safari is the most affected app. Several issues were fixed by the updates released on Wednesday, and Apple makes it clear in its documentation that many of them are rather serious.

As described in one account of an issue with Safari, “an internet site could be able to monitor sensitive consumer information.” According to another, the processing of maliciously constructed internet content material may result in the execution of arbitrary code. That is detrimental to one’s health.

To put it another way, a shady web page created to take advantage of this vulnerability might cause your computer to run any code the hacker desired on it.

Wait, it gets much worse before it gets better. This is due to the fact that Apple claims that these vulnerabilities aren’t just theoretical, but that someone — whether it be hackers, governments, or anybody else who is knowledgeable — has most likely taken advantage of at least one of them in the real world.

A malicious tool may be able to execute arbitrary code with kernel privileges, according to Apple, which is in reference to a concern with iOS and iPadOS devices. Apple is aware of reports that this scenario may have been intentionally abused, the company says.

Fortunately, when it comes to the seemingly impossible task of keeping your iPhone and Mac free of zero-day vulnerabilities, just pressing “replace” may go a long way — even if you have to do it again and over again.