Lockscreen Bug ( unlock without pin/ finger )

[Pippolux]

Hi everyone,

I noticed that my Xperia xz premium can be unlocked without any fingerprint or pin even if I set-up that already.

If I push the fingerprint button with another finger the phone go to the lockscreen and in that moment I just need to swipe up the lock button and my phone is unlocked without any pin or fingerprint. How can I solve this issues?

I have Oreo and original launcher 

Thanks 

[Pippolux]

I solved the problem on my own, I deactivated the smart lock functions in settings. 

Thanks