Apple stops signing iOS 16.6, users who upgrade to iOS 16.6.1 need to remember not to downgrade again

According to news on September 15, Apple recently released an update to iOS 16.6.1 and stopped signature verification for iOS 16.6, which means that users who have upgraded to the latest version will no longer be able to downgrade back to the old version. Apple's consistent practice is to stop signature verification of old versions after releasing new versions to encourage users to always use the latest operating system, which provides better security and performance. The release of iOS 16.6.1 is out of concern for user data security, especially when two recently exposed vulnerabilities have attracted widespread attention.

According to the editor’s understanding, the tracking numbers of these two vulnerabilities are:

1. CVE-2023-41064
2. CVE-2023-41061

The hacker group NSO Group once used these two vulnerabilities to develop Pegasus monitoring Software that attacks via images and PassKit attachments containing malicious code. Fixes for these two vulnerabilities are critical to protecting user privacy and security.

Therefore, all iOS users are strongly recommended to upgrade to iOS 16.6.1 version as soon as possible to ensure that their devices are not affected by potential threats.

At the same time, users who have upgraded to iOS 16.6.1 need to note that since Apple has stopped signature verification for the iOS 16.6 version, they can no longer downgrade back to the old version of the system. Maintaining device security is an important part of protecting personal information.

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