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Subject: Re: Restoring iPad backup
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In article <1ktlonv.q1whxh14twnsbN%demp...@actrix.gen.nz>, David Empson
<demp...@actrix.gen.nz> wrote:

> > > > > It's normally straight forward - except "complete" doesn't include
> > > > > everything - such as Wi-Fi passwords.  
> > > > 
> > > > it restores wifi passwords. it may not restore other passwords, however.
> > > 
> > > My iPhone 5 didn't restore WiFi passwords when I set it up from the
> > > backup of my iPhone 3GS. Nor did my iPad 2 when I restored it from the
> > > backup of my iPad 1.
> > 
> > maybe they changed it recently, but i definitely took advantage of this
> > a couple of years ago. i forgot what a password was for a particular
> > wifi network, one which i used on occasion, and when i accessed it with
> > the updated device (same phone, maybe that's why), it connected without
> > issue. had it not, it would have been a big pain. this was probably
> > 4.x->5.x and was a full restore.
> 
> My iPad 2 would have been 4.x -> 4.x, but I can't be certain I've
> remembered that minor detail correctly from more than 18 months ago.

i've done that upgrade too and do not recall needing to reenter wifi
passwords then either.

> My iPhone 5 was 5.x -> 6.x and it definitely needed WiFi passwords
> entered again. I don't recall being directly involved in any other iOS
> device restores from backup in the last year or so, but I was already
> aware of the WiFi passwords being lost from seeing other reports of it.
>
> A Google search suggests this might be a quite recent change: I found a
> thread from December 2011 which claimed that WiFi passwords were backed
> up in a keychains.db file in the iTunes backup (the name would have been
> obscured, of course).

that would explain the discrepancy.

> Apple may have changed the backup rules in a relatively recent iTunes
> update to eliminate the risk of passwords being extracted from the
> backup.

and thereby inconveniencing users.

just how often were wifi passwords unknowingly extracted from backups
on people's hard drives anyway?