| Subject | English | French |
| data.prot. | man in the middle | homme du milieu (railwayman) |
| comp., MS | man-in-the-middle attack | attaque de l'intercepteur (A security attack in which an attacker intercepts and possibly modifies data that is transmitted between two users. The attacker pretends to be the other person to each user. In a successful man-in-the-middle attack the users are unaware that there is an attacker between them intercepting and modifying their data) |