> How else would you do it though? There are many ways. The simplest I can think of is a 6 digit numeric code that you have to enter, once from device A to B a

> How else would you do it though? There are many ways. The simplest I can think of is a 6 digit numeric code that you have to enter, once from device A to B and then from B to A. The OS can also ask you to authenticate with your fingerprint before linking.