A security seal includes a base with a locking projection and a head connected to the base with at least one blocking tab. Each blocking tab is connected to the head via a hinge element, together with a safety closure with a first closure part and a second closure part, which can be moved between an open position and a closed position relative to the first closure part. The first closure part has a seating on which the base of a security seal can be engaged so that, when the second closure part is in the closed position, a blocking tab of the security seal overlaps the second closure part on the side opposite the first closure part. A security container includes a container tub, lid and safety closure, wherein either the first or second closure part is arranged on either the container tub or lid.
