Apple today launched a new tool for iPhones to help reduce what a thief with your phone and passcode can access. The feature, called Stolen Device Protection, adds extra layers of protection to your iPhone when someone tries to access or change sensitive settings on your device.
Relying more on biometrics hardly seems secure. Passwords can be changed, biometrics are forever and authorities do like to keep records of them.
Many people still use 4 digit PINs. This is a huge improvement in security for them.