| Subject | English | Polish |
| IT | authentication service | usługa uwierzytelniania |
| IT | European Commission Authentication Service | system uwierzytelniania Komisji Europejskiej |
| comp., MS | Multi-Factor Authentication Service | Usługa Multi-Factor Authentication (A service that places an automated phone call, sends a text message, or pushes a notification to the Multi-Factor Authentication app on the user's mobile device and processes the result) |
| comp., MS | Remote Authentication Dial-In User Service | Usługa telefonujących użytkowników zdalnego uwierzytelniania (A proposed Internet protocol in which an authentication server provides authorization and authentication information to a network server to which a user is attempting to link) |
| comp., MS | Windows Azure Multi-Factor Authentication Service | Usługa Windows Azure Multi-Factor Authentication (A service that places an automated phone call, sends a text message, or pushes a notification to the Multi-Factor Authentication app on the user's mobile device and processes the result) |