Appliances like telephones will never have secure passwords (e.g. 32 random symbols), they will have at most short and insecure pins/passwords, 6-10 numbers or

Appliances like telephones will never have secure passwords (e.g. 32 random symbols), they will have at most short and insecure pins/passwords, 6-10 numbers or letters. But adding on top of that fingerprint/face with 1/10000-1000000 security will make it acceptably secure and still convenient.