We are continually enhancing the security of all the Ubuntu One services
(login, payments, file syncing, etc).
In the past week we have made some changes to our servers that may log you out
of the Ubuntu One clients on Ubuntu, Windows, Mac, Android or iOS.
In order to get them working again, just remove and add your account again.
You can find instructions for each platform in our FAQ if you don't know how:
We are working to improve our clients to handle this situation better in the
future, making it a seamless experience while still not compromising on
If you have any questions, don't hesitate to contact our support team:
The Ubuntu One team