Errors and omissions insurance (or E&O) is a form of professional liability insurance. It covers a business for services rendered that did not have the expected or promised results, or that result in a loss or personal injury suffered by the person receiving those services. It also covers situations where the individual or company failed to render services at all. Engineers, stockbrokers, accountants, insurance agents, and lawyers may be covered by E&O.
Malpractice insurance is also a form of professional liability insurance. Malpractice insurance covers healthcare professionals, physicians, dentists, pharmacists, and others.