Introducing Cyera Agent Guardian: Secure Everything AI Can See and Do

Non-human identities in the Fortune 500 grew 480% in the last six months, and AI agents are driving the surge. Businesses are adopting agents faster than security can review them, and every agent inherits its owner's permissions the moment it's deployed.

The industry's response has focused on the edges: filtering prompts and inspecting outputs. But agent risk lives in the middle—in the tool calls, MCP interactions, and database queries—where intent can drift mid-task and legacy controls have no visibility into what agents can reach. 

And an agent's reach is enormous. A human touches about 4% of the data they're entitled to over a career, while an agent will use all of it the first time a task requires it. Whether that reach is dangerous depends on the sensitivity of the data, and sensitivity is one thing edge controls can't see, which makes an agent reading a meeting agenda look the same as an agent reading a table of patient records. That is why Cyera approaches agent security from the data layer up.

Today, that approach becomes a reality. Cyera Agent Guardian makes every agent as visible and accountable as a human employee, with every decision anchored in what the data actually is.

End-to-End Posture and Runtime Protection for AI Agents

Agent Guardian is a comprehensive AI security solution that evaluates what an agent was designed to do, and what it's attempting right now, against a continuous behavioral baseline, stopping dangerous operations before they execute. It secures the agent lifecycle in four phases:

• Discover: Automatically inventories every agent across cloud environments, SaaS platforms, and workstations, mapping models, tools, and data connections into a visual Agent Graph.
• Govern: Continuously assesses posture, flagging misconfigurations and toxic combinations where broad data access, high autonomy, and privileged machine identity converge unchecked.
• Protect: Intercepts interactions inline, blocking dangerous tool calls and redacting sensitive records before a payload reaches an unauthorized destination.
• Validate: Red-team every agent against prompt injection, jailbreaking, and tool abuse, producing timestamped compliance evidence for frameworks like the EU AI Act.

Built to Fit the Stack You Run 

Wherever agents live, enforcement has to follow. Agent Guardian deploys at multiple control points:

• Cloud and AI Integrations: Direct API connections to managed AI apps and agent platforms, evaluating active configurations and monitoring interactions with negligible performance impact.
• AI Gateway Integration: An inline network plugin intercepts all developer interactions to enforce real-time content blocking and prompt injection defense.
• EDR and MDM Plugins: periodic scanning and monitoring of AI applications and agents on local devices via existing EDR/MDM agents; no additional Cyera agent required.
• Cyera Endpoint: A lightweight local agent scans workstation command lines, directories, and model context protocol servers in real time for local agents and their activity.
• Browser Shield: A managed browser plugin monitors web-based generative applications, stopping client-side data leaks and malicious prompt injections.

Agent Security From the Platform That Already Secures Your Data and Identities

Every agent security decision is a data question: is this record sensitive, who owns it, and should this identity touch it? Cyera starts ahead here because the platform already discovers and classifies enterprise data estates at petabyte scale with 98%+ precision, and maps it to human and non-human identities. Agent Guardian inherits that context, so it knows the sensitivity, lineage, and owner of everything an agent reaches, and it can turn an ambiguous tool call into a clear decision to allow, redact, or block without the false alarms that make teams shut enforcement off.

The shared foundation gives you one policy engine across Cyera DSPM, DLP, and Agent Guardian. A rule you write once governs a human opening a database, a developer pasting code into a browser, and an agent calling an API. You manage fewer consoles and walk into audits with a posture that holds up.

Be Agent Ready in 30 Days

You don't need another tool that explains an incident after the fact. You need to know what every agent can reach and whether it's acting within those limits, at the moment of execution. Agent Guardian does that, and it changes the question from whether you can afford to let agents run to how much more you can hand them.

When the business asks whether you can do more with agents, the answer is yes. Securely, and starting today.

To learn more about Agent Guardian, book a demo, visit the product page, and sign up to the webinar.  

‍