AWS is divided into geographic Regions, which are physical data centers. These are known as EC2 Regions and are designed to be completely isolated from the others. The EC2 locations are called Availability Zones. The AWS Cloud operates dozens of Availability Zones within 16 geographic Regions worldwide.
Passwords are not stored in the database. New and changed passwords are “hashed” using industry-standard encryption techniques. Only hashed versions of passwords are stored. They cannot be decrypted.
Customer data is stored on a server configured with redundant storage, allowing for no service interruption in the event of a single disk failure. Customer data is backed up daily to the AWS Simple Storage System (s3). YM monitors the infrastructure of all customer sites 24/7.