Buddhist (Theravada) cure for "Insecurity"?

While the Pali scriptures address (or at least reference) a number of specific sufferings that a human being can be subject to (Jealousy, Anger, Fear, etc.), do any of the teachings deal with the specific suffering of Insecurity (and how to overcome it)? Meaning a lack of self-confidence, usually caused by the mind making itself subject to fears and illusions that creep in and which it lacks the strength to banish or prevent in the first place.