Execution provenance is a verifiable record of how a system action happened: which actor triggered it, what order the steps occurred in, and what state changed as a result. In cyber security, this matters because logs alone often show that something happened, but not whether the event chain is trustworthy or complete. Provenance records can be signed or otherwise protected so defenders can inspect the path from request to side effect and detect tampering, gaps, or unauthorized delegation.
In real defenses, execution provenance helps with audit, incident response, and accountability for AI agents, automation, and multi-service workflows. It can show whether a tool call was approved, whether an agent escalated beyond its permissions, or where a state transition began. Attackers may try to hide by breaking the chain, using indirect tool calls, or altering records after the fact. Provenance controls help by making execution history tamper-evident, but they work best alongside least privilege, strong identity, and careful logging boundaries.