It is only kept on the device. Sources: - https://www.apple.com/business-docs/FaceID_Security_Guide.pdf https://www.apple.com/business-docs/FaceID_Security_Gu

It is only kept on the device. Sources: - https://www.apple.com/business-docs/FaceID_Security_Guide.pdf https://www.apple.com/business-docs/FaceID_Security_Guide.pd... - https://support.apple.com/en-us/HT204587 https://support.apple.com/en-us/HT204587 - https://support.apple.com/guide/security/welcome/web https://support.apple.com/guide/security/welcome/web