DriveSavers is a  data recovery company.  They have possibly discovered a new exploit that will unlock Applie iOS12 devices as noted below.  They charge an expensive fee to recover & are keeping exploit secret at this point 

https://www.forbes.com/sites/gordonkelly/2018/11/29/apple-iphone-xs-max-xr-problem-ipad-expensive-cost-upgrade/

https://drivesaversdatarecovery.com/data-recovery-services/devices-supported/smartphones-and-tablets/passcode-lockout-data-recovery/

In short: the data on all iPhones and iPads running iOS 12 is not safe. This comes after an announcement from popular data recovery company DriveSavers that files on these devices can be accessed with “a 100% success rate”. Furthermore, unlike most security holes which are disclosed to Apple, this one is being kept secret.

DriveSavers said it is building a service around the exploit and charging users up to $3,900 if they want to access locked devices. That said, the company stresses it is using strict identification protocols from customers to ensure they are not hacking an iPhone or iPad which doesn’t belong to them.

With DriveSavers keeping the flaw a secret to protect its new service, Apple has a major job on its hands to find and fix it. And until then, the race is on for more nefarious hackers to discover and exploit it …if they aren’t already.