Users can unlock Samsung Galaxy S8 phone by holding their phone in front of their eyes or their face or their image. Facial Recognition features will improve the security of the owner and experience making it simple for them to unlock their device and signing into websites. YouTube vlogger iDeviceHelp posted a video on his channel, in which the user Marcianotech demonstrated how to unlock a Samsung phone by getting the device owners picture from Facebook and presenting the image to the locked phone.”]
Source: https://securityaffairs.co/wordpress/57573/hacking/samsung-galaxy-s8-hack.html