Any data processed in Galaxy is part of that server's database. Any clusters that process the data would also have it during the duration of the job processing. Administrators will have access for troubleshooting reasons. Other external users would only be granted access if you have Shared (created a shareable link and sent that to others) and/or Published (anyone on that server would have access) your data.
- Sharing and Publishing your work
It is not recommended to use a public Galaxy server when analyzing sensitive data (clinical or similar). We take security very seriously but are not set up in a way that can guarantee privacy at the level often required for a non-public patient or clinical usage. Using your own Galaxy on a secured server (likely behind a firewall and not public internet accessible) is a better choice. If you have questions about what level of security your data requires, talk to the security administrators at your institution or place of work.
There are many ways to set up your own Galaxy if needed, please see:
- Galaxy Ecosystem: https://galaxyproject.github.io/
Thanks! Jen, Galaxy team