Security and SMS code
Codes, access protection and secure downloads.
This category covers “Security and SMS code”. The guides are for all Secure File Transfer users.
Recommended starting point: How does the security code work?
How does the security code work?
How the six-digit download code works.
Protect a transfer with an SMS code
Use SMS codes actively in Pro/Business.
Security code was not delivered
Resolve delivery issues for email or SMS codes.
Correct a wrong mobile number
Correct the mobile number in the contact or send context.
Why is code entry required?
Purpose of the code in addition to the link.
How long is a security code valid?
Session after login lasts 12 hours; no invented SMS minutes.
Safe sharing of download links
Share links and codes responsibly.
Protection against unauthorized access
Rate limits, locks and organizational measures.
Privacy and hosting in Germany
Hosting at Hetzner in Nuremberg according to product copy.
Help assistant
Based on published help articles
Answers are generated automatically from published help articles only – never from your files.
Example questions