According to a Forbes report, Israeli company Cellebrite is now able to unlock some very recent iPhones. Cellebrite is a well-known company that sells mobile forensics tools to extract data from locked devices.
While early versions of iOS weren’t really secure, this has changed quite a lot in recent years. All iOS devices now ship with a secure enclave, all data is encrypted if you use a passcode and there are multiple security checks when you boot and use your device.
In other words, if you don’t have the passcode, you’re going to have a hard time getting your hand on the data on the device. Many firms try to find vulnerabilities to unlock mobile devices. It has become a lucrative industry as intelligence agencies often pay forensics companies to unlock mobile devices.
Those forensics methods often lag behind. https://techcrunch.com/2018/02/27/cellebrite-may-have-found-a-way-to-unlock-iphones-running-ios-11/