SongBox is built on Amazon's cloud platform; AWS. You can read about it HERE.
Other companies that use AWS include Spotify, Netflix, AirBNB, Shazam, Soundcloud and over 1 million others.
The small amount of personal data we collect (pretty much just your name and email address) are stored on a MySQL database inside the fortress-like infrastructure of AWS.
Your assets (MP3s and your profile picture) are also stored in AWS.
When you cancel your membership or close your account we permanently delete everything. It's gone, forever. Unretrievable by anyone, even SongBox.