AWS EC2 on a dedicated backup server for two days</li> <li>AWS S3 for 7 days</li> <li>Google Cloud Storage for 30 days</li> <li>AWS Glacier for 90 days</li> </ul> <p>Only authorized members of the Trello operations team have access to the backup locations, so that they are able to monitor the performance of the backup processes, and in the very unlikely event that a restore becomes necessary. After 90 days, the encrypted backup files are destroyed.</p> <p>Attachments directly uploaded to Trello are handled differently than the primary database backups.