Dan Pražák The latest beta version of iOS 11.4 includes a special tool called USB Restricted Mode, which is used to better protect the device. With the help of this news, iPhones and iPads should be significantly more resistant to any attacks from the outside, especially those using special tools created to break the protection and security of locked devices.
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According to information from abroad, this new feature already appeared in some beta versions of iOS 11.3, but was removed during testing (just like AirPlay 2 or iMessage synchronization via iCloud). USB Restricted Mode basically means that if the device is inactive for more than seven days, the Lightning connector is only usable for charging purposes. And 'inactivity' in this case means the time during which there was no classic unlocking of the phone, through one of the possible tools (Touch ID, Face ID, numeric code).
Locking the Lightning interface means that apart from the ability to charge, nothing else can be done through the connector. iPhone/iPad does not appear when connected to computer, even when using iTunes. It will not even cooperate with special boxes created for hacking the security system by companies like Cellebrite, which are dedicated to breaking the protection of iOS devices. With this function, Apple is aiming for a greater level of security for its products, and the activities of the above-mentioned companies that have built a business on 'unlocking iPhones' have basically caught up with this tool.
Currently, iPhones and iPads already have certain security features related to the encryption of the internal content of the device. However, USB Restricted Mode is a solution that takes the entire security system one step further. This new feature will be most effective in the case of trying to unlock a switched-off phone, as classic authorization needs to be done. There are still some methods that work to some extent when trying to hack into a switched on phone. However, once a week has passed now, the whole hacking process should be pretty much impossible.
Overcoming iPhone/iPad protection is very challenging and therefore only a small number of companies specialize in this activity. As a rule, the devices reach them with a long time delay, so in practice it will be far beyond the seven-day period during which the Lightning connector will 'communicate'. With this step, Apple is primarily going against these companies. However, their procedures are not completely known, so it cannot be said with certainty that the new tool works 100%. However, we will probably never know.
Source: Appleinsider, Macrumors
So if I have to forget the passcode and let it sit in the basement, then no one will do a restore via cable and it will be a problem?