Lucidchart Security Basics Overview Lucidchart documents often contain sensitive business diagrams — org charts, network topologies, database schemas, and architecture plans that reveal internal infrastructure. The API uses OAuth2 client credentials, meaning a compromised client secret grants access to every document the integration can reach. Collaboration sharing with granular permission levels (view, edit, owner) must be enforced server-side. API versioning via the header requires pinning to avoid unexpected schema changes that break validation logic. Prerequisites - OAuth2 client ID and s…