"A judge in the US has ordered Microsoft to hand over a customer's emails, even though the data is held on a server in Ireland.
Microsoft has previously taken steps to reassure customers that data held on servers abroad should not be subject to search warrants by US authorities.
It follows concerns about data privacy after allegations of US spying by whistleblower Edward Snowden.
The judge said warrants for online data were different to other warrants.
The search warrant, which was issued to Microsoft by US authorities, sought information associated with a customer's email account including the customer's name, credit card details and contents of all messages.
Microsoft said that the account was hosted on a server in Dublin and therefore the search warrant was not valid as the data was outside of the US."
http://www.bbc.com/news/technology-27191500