pokial dlzoba, pozicka nebude splatena......

assets - the entire property of all sorts of a person, association, corporation....or estate appliable or subject to the payment of his or its debts....
short definition of asset - sufficient property to pay debts and legacies

...so assets security, in any form ( audio, video) perhaps in this case, is a security for who ever is in charge ( in house ) as collateral security