Errors and omissions (E&O) insurance, which may exclude negligent acts other than errors and omissions (“mistakes”), is most often used by consultants and brokers and agents of various sorts, including notaries public, real estate brokers, insurance agents themselves, appraisers, management consultants and information technology service providers (there are specific E&O policies for software developers, website developers, etc.), architects and engineers, attorneys, third-party business administrators, quality control specialists, nondestructive testing analysts, and many others. A mistake which causes financial harm to another can occur in almost any transaction in many professions.