Directors and officers insurance, or D&O, protects you against lawsuits that arise in connection with the decisions that you or others make as managers of a company. You might think that won’t be a problem in your case, but the range of circumstances it protects you against is so broad that you should think again.

Directors and officers insurance (D&O) is a particular form of cover designed to protect you against the financial effects of lawsuits that arise due to circumstances that arise from your decisions as a manager of a company. 

Source: https://www.entrepreneurshipsecret.com/directors-and-officers-insurance/