"Undercover" or "covert" refers to activities conducted in secret to gather information or achieve specific objectives without revealing one's identity or intentions. This approach is often used by law enforcement agencies, intelligence organizations, and private investigators to infiltrate criminal organizations or gather sensitive data. In undercover operations, individuals may assume false identities or roles to blend in with a target group. This method can be crucial for preventing crime, gathering evidence, or understanding complex situations. However, it also involves risks, as undercover agents may face danger if discovered by those they are monitoring, such as criminals or terrorist groups.