Anti-theft device for a cable and a ring cycle anywhere such a device

Anti-theft device (11) for a ring (1) with a chassis (2) which comprises a cable (12) having a first end fixedly attached to the frame (2), and a second end (14 ) mobile, capable of cooperating with a latch (22) mounted on the frame (2), this latch (22) being movable between a locking position in which it blocks the second end (14) of the cable (12) relative to chassis (2), and an unlocking position in which it releases this second end (14) relative to the frame (2).