More time, more risk and more expense—this is what auditors expect will be the effect of a recent Public Company Accounting Oversight Board (PCAOB) measure expanding the standard auditor’s report. Under the rule, formally approved by the board on June 1, the standard auditor’s report will include, among other things, the communication of “critical audit matters (CAM),” or information that the PCAOB believes investors and other users would find relevant.