Security increase
A security increase often occurs when a nation, state, or institution has recently suffered from a serious incident or is under the perception that there is an increased risk for an incident to occur that endangers or potentially endangers its well-being. Historically, security has been increased by governments and private institutions for a variety or reasons, including incidents that have occurred to themselves, to other similar institutions, or to the world, nation, or region following a high-profile event or a perceived threat of one.