Yeah, the latter. All kinds of reports of siblings (including fraternal twins and non-twins) being able to unlock each others phones. https://duckduckgo.com/?o

Yeah, the latter. All kinds of reports of siblings (including fraternal twins and non-twins) being able to unlock each others phones. https://duckduckgo.com/?origin=funnel_home_google&t=h_&q=faceid+siblings&ia=web https://duckduckgo.com/?origin=funnel_home_google&t=h_&q=fac... Fingerprints are much more non-deterministic and therefore more secure.