Chain of Trust
Noun · Security & Infosec
Definitions
A security model where each component or stage is validated by a trusted predecessor, creating a sequence of verified trust from a root. It appears in secure boot, PKI, and software supply-chain verification systems.
In plain English: A sequence where each trusted component verifies the next one.
Example: "The secure boot design depended on a chain of trust anchored in hardware-protected keys."