The EU revamped its vaunted data protection and privacy laws with the 2016 passage of the General Data Protection Regulation. While GDPR is already in effect - any organization with European customers must comply - enforcement won't take effect until May 25, 2018.
Can U.S. law enforcement use a warrant to seize emails stored outside the U.S. by a cloud services provider? That's the question the Supreme Court has agreed to consider next year. Microsoft continues to fight an order to turn over emails stored in an Irish data center.