$1.$What is Auditors' Liability to Third Parties

$2.$ Please explain the results of auditor's liability to third parties under each of the following cases: Ultramares, Credit Alliance, $1965$ Restatements $($Second$)$ of Torts and Rosenblum. $3.$ How should auditor determine and defend which case is most beneficial to auditors and which is most beneficial to society.