| Subject | English | Portuguese |
| commun. | local security | segurança local |
| comp., MS, Braz. | local security authority | autoridade de segurança local (A protected subsystem that authenticates and logs users on to the local computer. In addition, the LSA maintains information about all aspects of local security on a computer (collectively known as the local security policy), and it provides various services for translation between names and identifiers) |
| comp., MS, Braz. | Local Security Authority Subsystem Service | serviço LSASS (An interface for managing local security, domain authentication, and Active Directory processes. It handles authentication for the client and for the server. It also contains features that are used to support Active Directory utilities) |
| comp., MS | Local Security Authority Subsystem Service | Serviço de Subsistema de Autoridade de Segurança Local (An interface for managing local security, domain authentication, and Active Directory processes. It handles authentication for the client and for the server. It also contains features that are used to support Active Directory utilities) |
| polit. | Local Security Officer | responsável local de segurança |