Cybersecurity professionals should be aware of six major red flags: organizations that don't understand their security breach potential, those who aren't preparing for increased vulnerabilities, point-in-time testing users, cost-saving prioritization over privacy, lack of a Vulnerability Disclosure Policy (VDP), and insufficient scope in programs. Conversely, reading publications like Inside the Mind of a Hacker can be seen as a positive indicator, suggesting an interest in cybersecurity best practices and staying informed about industry trends.