| Subject | English | Bulgarian |
| comp., MS | Multi-Factor Authentication Service | услуга на 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 | Windows Azure Multi-Factor Authentication Service | услуга на 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) |