When they tried to log back in using the existing passwords, they were unable to do so.
Except my password doesnt work when I am 100% certain it is correct I get an error.
I cant even reset my password!
wrote a third user.
Also, any previously established app-specific passwords within iCloud were also reset because of the service disruption.
Keep watching this space for more updates, as this is a developing story!
source: www.techworm.net