Anti-theft device intended to be attached to an item sold over-the-counter

An antitheft device configured for attachment to an article sold over the counter, formed by two parts, one of which comprises a means for remote interaction with a terminal detecting the passage of such a device, said parts being articulated by a hinge to allow movement between a protection position in which the antitheft device interacts with a part of the article to be protected in order to prevent separation of the antitheft device and the article, and a release position configured to enable the article to be removed, a first part having, at the end opposite to said movable hinge, a needle able to move in a direction perpendicular to the mid-plane of the device, the other part comprising a housing for receiving said needle, the housing comprising locking means configured to allow the release of said needle by means of an opener, wherein said first part has three retractable cages enabling said needle to move between a retracted position where the tip of said needle does not project beyond the internal surface of the first part, and a deployed position in which said needle is engaged in the complementary housing when the device is in the closed position, an external cage of said three retractable cages being fixed, an intermediate cage of said three retractable cages being moveable in axial translation with respect to the external cage and an internal cage of said three retractable cages being moveable in axial translation with respect to the intermediate cage.