Which of the following is NOT a source of security information?

The correct answer is social media accounts, as they do not serve as a formal or reliable source of security information in the context of financial markets. Social media platforms primarily facilitate communication and share opinions, news, or rumors in real-time, which can vary widely in credibility and accuracy. While they may provide informal insights or attract discussions regarding companies and their securities, these platforms lack the rigorous verification processes that formal financial information sources employ.

In contrast, Bloomberg is a respected provider of financial data, analytics, and news, making it a valuable source for investment professionals. Financial statements, which companies publicly share, contain essential information regarding an organization's financial health and performance, helping investors make informed decisions. The NYSE (New York Stock Exchange) is a major stock exchange that provides extensive data regarding listed securities, including trading volumes, price quotes, and historical performance, offering vital information for investors and analysts.