Secured carabiner

Carabiner comprising:

• a body defining an insertion slot of a rope extended by a securing area of the rope,
• a first clamp fitted movable between a standby position of the rope in the insertion slot and an obstruction position when the rope is located in the securing area, the obstruction position being configured to prevent insertion of another rope in the securing area,
• a second clamp configured to allow movement of the rope from the insertion slot to the securing area and to prevent movement of the rope from the securing area to the insertion slot, the first clamp being distinct from the second clamp, wherein the second clamp is a movable clamp configured to move between a standby position closing the securing area and an insertion position of the rope in the securing area.