Comparison
PlainID authorizes every AI agent action: prompt, retrieval, tool call, and output, whether it looks routine or not. Zenity's runtime layer blocks the ones that trip a rule. Here is the feature-by-feature breakdown, sourced and dated.
Every verdict below carries a written reason, not just a mark, including where Zenity has the edge, so it holds up whether a person is reading it or an AI assistant is summarizing it.
Full coverage: Every action, every time
Authorizes each action based on identity, intent, and context, not only the ones that trip a rule.
Partial coverage: Circuit breaker only
Runtime Boundaries evaluate actions against posture rules and threat signals: allow, block, or shut down.
Full coverage: Full flow
Prompt, data retrieval, tool calls, and output, every step decisioned in real time.
Partial coverage: Posture and access layer
Covers agent permissions, configuration, and integrations; not documented at the data or output layer.
Full coverage: Row, column, and field-level
Pre-retrieval RAG filtering plus fine-grained enforcement at the data platform layer.
Gap / limitation: Not documented
Public materials describe permission and configuration governance, not data-layer filtering.
Full coverage: Dynamic masking
Sensitive data in AI-generated responses is intercepted and redacted before it reaches the user.
Gap / limitation: Not documented
No public documentation of output-level masking or redaction.
Full coverage: Runtime binding
Every agent action is constrained by the initiating human's real-time entitlements, evaluated before the action happens.
Partial coverage: Behavioral correlation
Correlates identity from Okta and Microsoft Entra with agent behavior to flag deviation after it occurs.
Full coverage: Zero Standing Privileges
Access is minted just-in-time, per action, and revoked immediately after use.
Partial coverage: Least-privilege posture checks
Flags excessive privileges against policy, evaluated primarily before an agent goes live.
Gap / limitation: Not the product's focus
PlainID authorizes actions; it does not detect prompt injection or anomalous agent behavior.
Full coverage: Built for this
Detects and responds to prompt injection, over-permissioning, and autonomous deviation, aligned to OWASP and MITRE ATLAS.
PlainID and Zenity are not solving the same problem. Here's the honest split.
AI security posture management
PlainID control plane
Policy & control plane (PlainID)
50%+
Of successful cybersecurity attacks against AI agents will exploit access control issues through 2029 — Gartner, "How to Secure Custom-Built AI Agents," 11 June 2025
2B+
Authorization decisions processed annually, built for high-scale, real-time enforcement across complex environments
F500
Fortune 500 enterprises trust PlainID to secure millions of identities, recognized by Gartner and KuppingerCole in authorization and security platforms
Existing agent inventory and Zenity posture policy are mapped to PlainID's authorization model.
PlainID's authorization decisions run alongside Zenity's posture monitoring so teams can validate before cutover.
Every agent action is authorized by PlainID in production, while Zenity continues discovery, posture scoring, and threat detection.
Comparison
Privilege management and runtime authorization compared.
Comparison
Identity governance and runtime enforcement compared.
Comparison
Access visibility and runtime decisioning compared.
PlainID and Zenity both address AI agent security, but at different layers. Zenity discovers agents, evaluates permissions and configuration, and can block or shut down an agent when it detects a threat or violation. PlainID authorizes every single agent action, prompt, retrieval, tool call, and output, whether or not anything looks suspicious, and adds data-layer and output masking Zenity does not document.
Teams add PlainID when they need every agent action authorized, not just the ones that trip a posture rule or threat signal, and when they need data-layer protections like RAG pre-retrieval filtering and LLM output masking that Zenity's platform does not document.
No. PlainID does not replace Zenity's agent discovery, posture management, or threat detection. It is an additive runtime authorization layer: Zenity governs agent posture and detects violations, PlainID decides whether each specific action should be permitted, every time.
A typical rollout runs about six weeks: two weeks mapping existing agent inventory and posture policy to PlainID's authorization model, two weeks running PlainID's authorization decisions alongside Zenity's monitoring in parallel, and two weeks moving to full runtime enforcement in production.
No. Threat and anomaly detection, prompt injection, over-permissioning, autonomous deviation, is Zenity's focus, aligned to OWASP and MITRE ATLAS. PlainID's job is different: it authorizes every action based on identity, intent, context, and data sensitivity, whether or not anything looks like a threat.
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