Silicon Valley Bank failed just 14 days after KPMG LLP gave the lender a clean bill of health. Signature Bank went down 11 days after the accounting firm signed off on its audit. What KPMG knew about the two banks’ financial situation and what it missed will likely be the subject of regulatory scrutiny and lawsuits. KPMG signed the audit report for Silicon Valley Bank’s parent, SVB Financial Group SIVB Regulators seized the bank on March 10 after a surge of withdrawals threatened to leave it short of cash. “Common sense tells you that an auditor issuing a clean report,...