The invention is directed to a security tag (7') for protecting an article (1) against theft, with an electronically detectable first security element (3) and a covering layer (4) covering said first security element completely. The covering layer (4) is covered completely with a label (6) made of tearable material, which on its side facing the covering layer (4) is provided with an adhesive whose bonding strength is at least somewhat lower than that of the adhesive applied to the covering layer (4). Arranged between the covering layer (4) and the label (6) is a second security element (5), which overlaps the covering layer (4) at least in part and is provided on its side facing the covering layer (4) with an adhesive whose bonding strength is somewhat greater than that of the adhesive applied to the label (6). The covering layer (4) and the second security element (5) are completely covered by the label (6). With this construction of the security tag (7) it is ensured that a removal of the security elements (3, 5) from the secured article (1) is not possible at all or only with great difficulty.