Apple iOS 16.4.1 and macOS Ventura 13.3.1

On April 7, Apple issued several security updates:

  • macOS Ventura 13.3.1 corrects a security vulnerability that could allow applications to change their security privileges; this was patched. Also patched was a vulnerability in WebKit (used by Safari, Photos, Reminders, and hundreds of other applications) that could be exploited by malicious software.
    • Also patched: some users (chiefly those in large corporations or other institutions) had problems with home directories located on external drives or servers; this was corrected. Other users had problems with the Quick Look function (that allows you to peek at files without opening them); this was corrected. Others had problems getting Universal Control and Handoff to work when using the Mac with other devices and iCloud; this was corrected.
  • iOS 16.4.1 and iPadOS 16.4.1 corrected an application security vulnerability similar to that in macOS Ventura, as well as a similar WebKit vulnerability.
    • Also patched were issues some people were having with the Weather app, some anecdotal issues with battery drain, and issues with the Home app (used for controlling smart home devices).

If you have a Mac capable of running macOS 13.3.1 Ventura, you are highly encouraged to install this operating system, and keep it up to date.

Similarly, if you have an iPhone or iPad capable of running iOS 16.4.1 or iPadOS 16.4.1, you are encouraged to update them, and keep them current.

If you absolutely, positively have a good reason to run an older Macintosh operating system, please consider getting a second Mac, and not allowing that Mac to touch the Internet. While Apple has a stellar reputation for creating secure devices, the security of your computer and portable electronics is closely tied to user behavior, and you are ultimately responsible for your own privacy and security.

If you have an iPhone that can’t run iOS 16, replace it. There is no other safe option.

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