The PwC (refer to Price water house Coopers) has published a report about the keys questions that a board should consider in order to carry out their governance duty.
Here you have the questions and a link to read the Pwc answer to this thematic.
1/ how is management evaluating and executing its strategic plan and risk management practices to address today’s competitive global marketplace?
2/What is the company doing to comply with anti-corruption laws and regulations?
3/How is management addressing contemporary accounting hot topics, including asset impairments, income taxes, and segment reporting, and ensuring the transparency and appropriateness of the company’s disclosures?
4/Does the audit committee engage in sufficient discussions and interactions with the external auditor in response to the current dialogue relative to audit quality and the reliability of financial reporting?
5/Has management considered the financial and business implications of the new tax law, and what is it doing with respect to the impact of potential corporate tax reform?
6/is the company effectively addressing the key opportunities and risks of IT?
7/Does management have processes in place to address cybersecurity risks?
8/what is the board’s approach to communications with shareholders and other stakeholders, and should it be reconsidered?
9/As regulatory bodies and lawmakers continue to discuss, propose, and enact laws and regulations, and shareholders continue to be active, is management analyzing possible effects and considering “no regrets” moves?
Here read the all report and answers: Key questions for board and audit committee members

The risks related to low-probability, high-impact events such as oil spills and product recalls cannot be overlooked.