Is It Safe to Store Passwords on a Client?

Apple says that they actually recommend you put ous name and password in there too, which i feel laitle bit weird about. But they say it's like, super safe. Yes, i think i would love to take a course about t a security port, because that, to me, is not so clear. Every platform has differences, right? I don't know. There's all kinds of security concern and how do you pass like yig at theapi? Kis, i guess it depends, ree.