My Company A (an IL Corporation) has a contract 1 with company B. Company A borrowed some money (less than $10,000) from Individual C who owns a Company C. Individual C would very much like to have the contract that Company A has with Company B. The agreement between Company A and Individual C was that the loan would be paid back upon receipt of the funds for contract 1 (60 days). If Individual C writes a letter and telephones Company B, (according to the agreement between Company A and Individual C was that the loan was confidential and Individual C was to have no contact with Company B) can Company A sue Individual C and company C for "Interfering with a contract"?