Why you should apply the iOS 16.4.1 (a) updateĪlthough there were teething problems, this should not put people off from sticking with rapid security updates, says Jake Moore, global cybersecurity advisor at ESET. However, it could have been over-loaded-hours later the process seems to be working more smoothly, so it’s a good idea to update your iPhone as soon as you can. Of course, iOS 16.4.1 (a) did have some teething problems, with several reports that the upgrade was failing to install. The Rapid Security Response in iOS 16.4.1 (a) allows the iPhone maker to do just that, ideally more quickly than if it had stuck to the previous security update method. It makes sense that Apple wants to patch any holes that would allow attackers to plant spyware as quickly as possible. This type of malware can be brutal, and it makes its way onto iPhones and other devices often via “zero-click” cyber-attacks that require no interaction from the user. It comes at a time when criminals and nation state adversaries are targeting iPhones with spyware.

They may also be used to mitigate some security issues more quickly, such as issues that might have been exploited or reported to exist 'in the wild.' iPhones targeted with spyware

They deliver important security improvements between software updates - for example, improvements to the Safari web browser, the WebKit framework stack, or other critical system libraries.

“Rapid Security Responses are a new type of software release for iPhone, iPad, and Mac.

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