| Subject | English | Estonian |
| comp., MS | SIM card | SIM-kaart (A smart card that stores a subscriber's personal identifier, billing information, and data) |
| comp., MS | SIM PIN | SIM-kaardi PIN-kood (A type of personal identification number (PIN) for the SIM card, consisting of 4 digits, that is used to gain access to your mobile phone) |
| comp., MS | SIM security | SIM-kaardi turvalisus (A toggle switch that you tap to enter a SIM PIN) |