What is identity security and why is it so complicated?

Identity security is crucial for ensuring that users have appropriate access to apps and databases. In today's globalized work environment, managing multiple digital identities, authorization for each identity, and securing enterprise data pose significant challenges. To address these issues, enterprises use tools like Identity Providers (IdP) and Single Sign-On (SSO). However, weak identity security persists due to "Shadow IT" and overpermissioning. Effective identity security requires implementing least privilege access controls and visualizing who can do what with which data.