The term 'leak (through)' can be summarized by the four-letter word 'SEEP'. Seepage is the slow, gradual movement of liquid through a porous material, such as soil or rock. It is often caused by water pressure, gravity, or capillary action. Seepage can also refer to the unintentional release of a substance, such as oil or gas, from a container or pipe. In this context, it is often used to describe the unintended release of confidential information.