| Danish | English |
| S/MIME | Secure/Multipurpose Internet Mail Extensions An Internet e-mail security-oriented protocol that adds public key encryption and support for digital signatures to the widely used MIME e-mail protocol (Secure/Multipurpose Internet Mail Extensions) |
| S/MIME-kvittering | S/MIME receipt (An e-mail security feature used to request confirmation that a message was received unaltered and information about who opened the message and when it was opened. This verification information is returned as a message to your Inbox) |
| S/PDIF | SPDIF A standard for digital transfer of audio (Sony/Philips Digital Interface) |
| S til S-protokol | S2S protocol (An authentication protocol between two servers or services) |
