A ticker symbol is a unique series of letters assigned to a publicly traded company’s stock or security on a stock exchange. It serves as an abbreviation for the company’s name and is used to uniquely identify and track the company’s shares during trading. Ticker symbols are essential for investors, analysts, and automated trading systems to quickly locate and reference stocks. While not a cybersecurity term in itself, understanding ticker symbols is important for cybersecurity professionals dealing with financial fraud, phishing, or scams that may impersonate legitimate companies by misusing or mimicking ticker symbols.