leakage

/ˈliːkɪdʒ/ noun [C or U]

Definition

› a situation in which a liquid or gas escapes from an opening in a pipe or container, or the amount that escapes: Continued leakage from the plant means that the river remains polluted.

› shrinkage

› a situation in which secret information is made known: leakage of sth Three different investigations have failed to trace any leakage of information to him.

(Definition of leakage noun from the Cambridge Business English Dictionary © Cambridge University Press)