The breach began with a single unchecked permission. By the time anyone noticed, attackers had mapped the entire directory. Every endpoint, every role, every link in the chain was exposed.
Directory services are the spine of modern supply chain security. They define who can access what, when, and how. If a directory is weak, the entire security perimeter collapses. Attackers know this. They target identity stores, configuration endpoints, and federated trust relationships. Once inside, they move sideways, exploiting overlooked accounts and dormant credentials.
Supply chain security today depends on clarity and control within directory services. Organizations rely on Active Directory, Azure AD, LDAP, and custom identity platforms to authenticate partners, vendors, and distributors. Each connection introduces risk. A compromised service account in one partner’s directory can cascade into a full breach across the chain.
Defense starts with visibility. Audit every access path, every assigned role, and every integration point. Map out trust hierarchies and detect unused accounts. Enforce strong authentication on every directory node. Segment networks so compromised identities cannot leap into core systems. Review federation configurations and access tokens with the same rigor as source code.