Abstract: An improved security container and closure apparatus including a generally cylindrical container having a closing base portion at one end and an open mouth at the other end, a rib extending inwardly from the side of the mouth opening, and a neck portion surrounding the mouth and having an external wall provided with a circumscribing recess, and a resilient closure having a top portion and a surrounding, downwardly depending skirt portion, the skirt portion having an inwardly extending bead matingly engageable with the recess of the neck portion of the container.