NSUserDefaults or keychain is better to save username and password in iPhone app

Question

In my iphone app there is some confidential data like username, password and some urls to a webservice. Which one is better NSUserdefaults or keychain. Somebody says NSUser

Answer 1

Keychain is way better solution, because it is more secure, but anyway, if you would save this kind of information into the NSUserDefaults, your users wouldn't feel any different. If someone would hack their device, they could get information from Keychain, the same as they would get information from UserDefaults. So this question of security is rhetoric. But anyway, the good programming style is to save this data into the Keychain!