Volkswagen was found to have cheated emissions tests by installing software on 11 million diesel vehicles worldwide that could detect when they were being tested and reduce emissions output, violating environmental standards. The scandal could cost the company $18 billion in fines in the US alone and led to a 30% drop in its stock price. In response, VW's CEO resigned and the company set aside $7.3 billion to fix affected vehicles and launched initiatives to compensate customers and retain brand loyalty. To prevent future crises, experts say VW should move to a more open structure with transparent governance.