| Subject | English | Portuguese |
| comp., MS, Braz. | Hypertext Transfer Protocol over Secure Sockets Layer | HTTP sobre SSL (A message transfer protocol used by the World Wide Web to service page requests, and which adds a security layer using Secure Socket Layer (SSL) technology) |
| comp., MS, Braz. | Hypertext Transfer Protocol Secure | protocolo HTTPS (A message transfer protocol used by the World Wide Web to service page requests, and which adds a security layer using Secure Socket Layer (SSL) technology) |
| fin., commun., industr. | Secure Electronic Transaction protocol | protocolo SET |
| fin., commun., industr. | Secure Electronic Transaction protocol | transação eletrónica segura |
| comp., MS | Secure Hypertext Transfer Protocol A protocol that provides a secure Hypertext Transfer Protocol (HTTP) connection | protocolo S-HTTP (Secure Hypertext Transfer Protocol) |
| IT | secure protocol | protocolo seguro |