Trust center
Security, data storage, Microsoft 365 permissions, subprocessors and legal documents for SimpleSign365, on one page for IT and procurement.
Last updated 28 October 2026
Key facts
- Documents are stored in the EU (Microsoft Azure, West Europe) or the US (Microsoft Azure, Central US), chosen once per office.
- Signing emails are sent from the sender's own Microsoft 365 mailbox with a delegated send permission. Mail is never read.
- Finished PDFs are sealed with a trusted timestamp; any later change shows.