Identity-rich systems are environments that store information about people and their access, such as employee accounts, onboarding records, HR files, directories, and authentication data. They often connect to email, payroll, help desks, cloud apps, and internal portals, so they contain both personal data and the keys to other systems.
These systems matter because attackers value them for account takeover, privilege discovery, phishing, and lateral movement. A single exposed identity platform can reveal usernames, roles, managers, onboarding status, or MFA gaps, helping an intruder target the right accounts and bypass normal defenses. Defenders protect these systems with strong access control, MFA, logging, segregation of HR and IT data, and rapid review of suspicious account changes or export activity.