Original link: https://blog.yitianshijie.net/2022/08/19/ios-15-6-1-macos-12-5-1/
iOS 15.6.1, iPadOS 15.6.1, macOS Monterey 12.5.1 have been updated to fix WebKit and kernel security vulnerabilities. This time the vulnerability is more serious, please update as soon as possible.
There are quite a few factors involved in discussing whether iMessage is safe . The security of the iOS system itself is an integral part. The oldest model supported by iOS 15 is the iPhone 6s, which was released in 2015. How many 2015 Android phones support the latest version?
iMessage isn’t always the best choice, but in general the reason isn’t that the use of non-end-to-end encryption on the cloud or iCloud backups causes the keys to leave the sender’s device. Suppose your friend was summoned and quickly texted you before the police came in. You don’t want or even fear that the police see your chat history on her phone. There needs to be a quick and easy way to delete my conversations with her without touching her phone or any device. As far as I can see, only Telegram provides this feature in the current chat software. When you delete a message, Telegram will ask you if you just want “Delete for me” or “Delete for me and the person’s name”. If you choose the latter, it will be deleted on all your and her devices at the same time. Go to the message conversation list to find your conversation, press and hold, click Delete and then select Delete for me and the other party’s name, you can unilaterally delete the entire set of chat records on all devices of the two at one time . If you do this quickly on your computer or phone after the unfortunate news that she’s been summoned, the police won’t know that you’ve chatted when they open her phone. Telegram’s design of not using end-to-end encryption by default is often criticized, but for most people, the value of this feature outweighs the default end-to-end encryption.
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