> It seems unrealistic to use a lengthy PIN (10 digits or more?) to unlock my phone, because I have to do it so often. My suggestion: Be an empiricist and run

> It seems unrealistic to use a lengthy PIN (10 digits or more?) to unlock my phone, because I have to do it so often. My suggestion: Be an empiricist and run the experiment. I've been using strong 8+ character alphanumeric passwords on my devices for several years, and it’s rarely a bother. Sometime ago, I even started using randomly generated complex passwords for my work account, and I was astonished by how effortless it is for me to memorize a new such password every 90 days. As they say, your mileage may vary, but at least run the experiment, you might be surprised.