Teamwork.com performs backups in two parts: your files and database of content.
For the database, we run 2 backups of all Teamwork.com databases daily, 12 hours apart. The backups are stored at a secure external facility.
We use Amazon S3 for safe and secure file storage. Amazon S3 provides a highly durable storage infrastructure designed for mission-critical and primary data storage. Files are redundantly stored on multiple devices across multiple facilities in an Amazon S3 Region.
They also employ intelligent delivery by serving the file from a location geographically located close to the user downloading the file. Your files are signed which means that the link is valid only for an hour, so if the link is misplaced, the download fails until requested by an authorized person.