Which of the following is considered a type of proprietary information?

Proprietary information refers to data and details owned by a business that give it a competitive edge and are not available to the public. This can include trade secrets, business strategies, and client information that is crucial to maintaining business relationships and operational effectiveness.

A customer list is a prime example of proprietary information, as it contains specific details about clients or customers that a company has gathered over time. This information can include contact details, purchasing history, preferences, and any notes about interactions. Such data is valuable because it helps the company tailor its services or products and design effective marketing strategies. Unauthorized access or distribution of a customer list can significantly harm a business, as competitors may leverage that information to their advantage.

In contrast, stock market analysis and public financial reports are generally available to the public and don’t qualify as proprietary information since they can be accessed by anyone. Employee resumes, while private, are not typically viewed as proprietary information related to the business's competitive advantage in the same way as a customer list. Thus, focusing on the nature and value of the information reinforces why the customer list is categorized as proprietary.