Apple Accidentally Allowed Downgrades All the Way Back to iOS 6 Early Today

Apple has quickly corrected a mistake that allowed iPhone, iPad, and iPod touch users to downgrade to older software versions on early Thursday.
The situation began on late Wednesday when Apple suddenly stopped signing all iOS versions for select devices, including the iPhone 4s and some very old iPad and iPod touch models, according to the website IPSW.me.Next, it appears that when Apple went to flip the switch back on, it accidentally began signing several older software versions between iOS 6