Although iOS16 has been launched for some time, it is still in the developer beta stage, and due to many bugs, many iOS15 users are still in the wait-and-see stage and dare not upgrade easily. If you are planning to wait until the system is more stable, then Upgrading, then it is

Although iOS16 has been launched for some time, it is still in the developer beta stage, and due to many bugs, many iOS15 users are still in the wait-and-see stage and do not dare to upgrade easily. If you are here to wait for the system to be stable, Before upgrading, it is necessary to have a certain understanding of some of the features, such as the closed mode launched in iOS16 beta3 yesterday.

This is a newly upgraded security mode of apple , which can provide extremely tight security protection for the device. Once the closed mode is enabled, all currently known cracking methods for iOS devices will be ineffective. So why does Apple do this? Will such a function be added to iOS16?

This may be related to an Israeli developer called NSO. Last year, the manufacturer launched the " Pegasus " software, which caused great security risks to iOS devices. Apple filed a lawsuit with NSO last year, claiming that the relevant software had compromised iOS devices. The equipment poses serious security risks. Although the lawsuit is ongoing, preventive measures must be taken. The launch of closed mode is most likely to prevent other manufacturers from imitating NSO.

First of all, as long as the device can be upgraded to iOS16, the closed mode can be turned on. But something that happened last year, why is it not launched in iOS15 in time, and it has to be supported on iOS16 this year? I really didn't want to use conspiracy theories to measure this matter, but I had to think that way.

In fact, not only iOS16, but also iPadOS 16, MacOS, as long as it is subsequently upgraded to the latest system version, this function can be turned on. But then again, although turning on closed mode can greatly improve the security of the device, but using The experience will also be greatly reduced, and many functions will be restricted. Xiaozhi has summarized a few for everyone: Many functions in

1 and imessage cannot be used. For example, you can only view pictures, and other files, preview links, etc. cannot be viewed. Calls or service requests from strangers in

2, facetime and daily call functions will be rejected, and all sharing functions in the album will be suspended.

3. The description file cannot be installed, and any mobile device management software cannot access Apple devices that have turned on closed mode, including Apple's own tools.

4. When the device is locked and cannot be wired to other devices or accessories, and when using safari or a third-party browser to browse the web, a large number of network compilation technologies including Web and Javascript cannot be used.

The above 4 items are only the system-level protection provided to Apple devices in closed mode. It is not clear whether there will be other restrictions. In summary, it is to maximize the security protection capabilities of the device without affecting the basic user experience.

So under what circumstances and who needs to turn on closed mode?

First of all, there are people with special identities (you can decide who they are, I won’t list them here). If you suspect that the device has been hacked, you can also turn on this function to prevent being attacked.

As for most ordinary users, under normal circumstances, there is no need to impose such extreme security protection on the device. This is just the last insurance provided by Apple to the device. I hope everyone will never enable it.