The term 'Bank Security Option' can be summarized as a LEVEE, which is a five-letter word. A LEVEE is an embankment built to prevent flooding from rivers or the sea. It is often used in coastal areas to protect against storm surges and other forms of flooding. Levees are also used to protect banks from erosion and other forms of damage. Bank security options are measures taken by banks to protect their assets and customers from theft, fraud, and other risks. These measures may include physical security systems, such as locks and alarms, as well as digital security measures, such as encryption and authentication.